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A 58-year-old White male presented with lesions on his index and middle finger for 3 months
Syphilis
Two biopsies by punch technique were performed; one for pathology and one for tissue culture (fungal and atypical mycobacteria). Tissue cultures showed no growth at 4 and 6 weeks, respectively. The lesions were swabbed for bacterial and viral cultures. Bacterial culture was positive for methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and group C Streptococcus. Viral culture for herpes simplex virus (HSV) and varicella zoster virus (VZV) was negative. Histopathology confirmed the diagnosis of syphilis. Immunoperoxidase stain was positive for Treponema pallidum, and negative for HSV-1, HSV-2, and VZV. Special stains for PAS, GMS, Fite, and AFB were negative for organisms.
Syphilis, also known as Lues disease, is a contagious, sexually acquired disease caused by the spirochete T pallidum. The skin and mucous membranes are primarily infected. There are primary, secondary, and tertiary stages. In the primary or initial stage of syphilis, a chancre appears, usually 3-4 weeks after infection. The chancre is a painless papule or erosion that progresses to a firm ulceration. Lymphadenopathy may be present. Less often, multiple chancres may be present. Primary chancre on the finger has been reported in the literature, although it is far less common to have extragenital primary syphilis. The incidence ranges from 2% to 10%. Other extragenital areas that can be affected include lips, intraoral lesions, and the anus. Atypical chancres can be formed when other microbial agents are also present. Generally, an untreated chancre will heal spontaneously within a few months.
The patient referred to the department of health for treatment with penicillin G and further workup of sexually transmitted diseases. He was also seen by infectious disease for treatment of the superimposed bacterial infections and treated with an antibiotic regimen.
The case and photo were submitted by Dr. Bilu Martin.
Dr Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Ramoni S et al. Sex Transm Dis. 2010 Jul;37(7):468. doi: 10.1097/OLQ.0b013e3181e2cfac.
Starzycki Z. Br J Vener Dis. 1983 Jun;59(3):169-71. doi: 10.1136/sti.59.3.169.
Syphilis
Two biopsies by punch technique were performed; one for pathology and one for tissue culture (fungal and atypical mycobacteria). Tissue cultures showed no growth at 4 and 6 weeks, respectively. The lesions were swabbed for bacterial and viral cultures. Bacterial culture was positive for methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and group C Streptococcus. Viral culture for herpes simplex virus (HSV) and varicella zoster virus (VZV) was negative. Histopathology confirmed the diagnosis of syphilis. Immunoperoxidase stain was positive for Treponema pallidum, and negative for HSV-1, HSV-2, and VZV. Special stains for PAS, GMS, Fite, and AFB were negative for organisms.
Syphilis, also known as Lues disease, is a contagious, sexually acquired disease caused by the spirochete T pallidum. The skin and mucous membranes are primarily infected. There are primary, secondary, and tertiary stages. In the primary or initial stage of syphilis, a chancre appears, usually 3-4 weeks after infection. The chancre is a painless papule or erosion that progresses to a firm ulceration. Lymphadenopathy may be present. Less often, multiple chancres may be present. Primary chancre on the finger has been reported in the literature, although it is far less common to have extragenital primary syphilis. The incidence ranges from 2% to 10%. Other extragenital areas that can be affected include lips, intraoral lesions, and the anus. Atypical chancres can be formed when other microbial agents are also present. Generally, an untreated chancre will heal spontaneously within a few months.
The patient referred to the department of health for treatment with penicillin G and further workup of sexually transmitted diseases. He was also seen by infectious disease for treatment of the superimposed bacterial infections and treated with an antibiotic regimen.
The case and photo were submitted by Dr. Bilu Martin.
Dr Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Ramoni S et al. Sex Transm Dis. 2010 Jul;37(7):468. doi: 10.1097/OLQ.0b013e3181e2cfac.
Starzycki Z. Br J Vener Dis. 1983 Jun;59(3):169-71. doi: 10.1136/sti.59.3.169.
Syphilis
Two biopsies by punch technique were performed; one for pathology and one for tissue culture (fungal and atypical mycobacteria). Tissue cultures showed no growth at 4 and 6 weeks, respectively. The lesions were swabbed for bacterial and viral cultures. Bacterial culture was positive for methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and group C Streptococcus. Viral culture for herpes simplex virus (HSV) and varicella zoster virus (VZV) was negative. Histopathology confirmed the diagnosis of syphilis. Immunoperoxidase stain was positive for Treponema pallidum, and negative for HSV-1, HSV-2, and VZV. Special stains for PAS, GMS, Fite, and AFB were negative for organisms.
Syphilis, also known as Lues disease, is a contagious, sexually acquired disease caused by the spirochete T pallidum. The skin and mucous membranes are primarily infected. There are primary, secondary, and tertiary stages. In the primary or initial stage of syphilis, a chancre appears, usually 3-4 weeks after infection. The chancre is a painless papule or erosion that progresses to a firm ulceration. Lymphadenopathy may be present. Less often, multiple chancres may be present. Primary chancre on the finger has been reported in the literature, although it is far less common to have extragenital primary syphilis. The incidence ranges from 2% to 10%. Other extragenital areas that can be affected include lips, intraoral lesions, and the anus. Atypical chancres can be formed when other microbial agents are also present. Generally, an untreated chancre will heal spontaneously within a few months.
The patient referred to the department of health for treatment with penicillin G and further workup of sexually transmitted diseases. He was also seen by infectious disease for treatment of the superimposed bacterial infections and treated with an antibiotic regimen.
The case and photo were submitted by Dr. Bilu Martin.
Dr Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Ramoni S et al. Sex Transm Dis. 2010 Jul;37(7):468. doi: 10.1097/OLQ.0b013e3181e2cfac.
Starzycki Z. Br J Vener Dis. 1983 Jun;59(3):169-71. doi: 10.1136/sti.59.3.169.
A 58-year-old White male with no significant past medical history presented with lesions on his right index and middle fingers, which had been present for 3 months. The lesions were painless. The patient has a history of hand dermatitis. Upon questioning, the patient said he had not fished or cleaned fish tanks. He did garden occasionally (no roses). He has been using Neosporin on the lesions. He denied any fever or systemic symptoms and had no lymphadenopathy.
What's your diagnosis?
A 71-year-old White female developed erosions after hip replacement surgery 2 months prior to presentation
The patient had been diagnosed with pemphigus vulgaris (PV) 1 year prior to presentation with erosions on the axilla. Biopsy at that time revealed intraepithelial acantholytic blistering with areas of suprabasilar and subcorneal clefting. Direct immunofluorescence was positive for linear/granular IgG deposition throughout the epithelial cell surfaces, as well as linear/granular C3 deposits of the lower two thirds of the epithelial strata, consistent for pemphigus vulgaris.
There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, PV presents with flaccid blistering lesions that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions can involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
There are numerous reports in the literature of PV occurring in previous surgical scars, and areas of friction or trauma. This so-called Koebner’s phenomenon is seen more commonly in several dermatologic conditions, such as psoriasis, lichen planus, verruca vulgaris, and vitiligo.
Treatment for PV is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid sparing agent such as mycophenolate mofetil. Other steroid sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cerottini JP et al. Eur J Dermatol. 2000 Oct-Nov;10(7):546-7.
Reichert-Penetrat S et al. Eur J Dermatol. 1998 Jan-Feb;8(1):60-2.
Saini P et al. Skinmed. 2020 Aug 1;18(4):252-253.
The patient had been diagnosed with pemphigus vulgaris (PV) 1 year prior to presentation with erosions on the axilla. Biopsy at that time revealed intraepithelial acantholytic blistering with areas of suprabasilar and subcorneal clefting. Direct immunofluorescence was positive for linear/granular IgG deposition throughout the epithelial cell surfaces, as well as linear/granular C3 deposits of the lower two thirds of the epithelial strata, consistent for pemphigus vulgaris.
There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, PV presents with flaccid blistering lesions that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions can involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
There are numerous reports in the literature of PV occurring in previous surgical scars, and areas of friction or trauma. This so-called Koebner’s phenomenon is seen more commonly in several dermatologic conditions, such as psoriasis, lichen planus, verruca vulgaris, and vitiligo.
Treatment for PV is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid sparing agent such as mycophenolate mofetil. Other steroid sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cerottini JP et al. Eur J Dermatol. 2000 Oct-Nov;10(7):546-7.
Reichert-Penetrat S et al. Eur J Dermatol. 1998 Jan-Feb;8(1):60-2.
Saini P et al. Skinmed. 2020 Aug 1;18(4):252-253.
The patient had been diagnosed with pemphigus vulgaris (PV) 1 year prior to presentation with erosions on the axilla. Biopsy at that time revealed intraepithelial acantholytic blistering with areas of suprabasilar and subcorneal clefting. Direct immunofluorescence was positive for linear/granular IgG deposition throughout the epithelial cell surfaces, as well as linear/granular C3 deposits of the lower two thirds of the epithelial strata, consistent for pemphigus vulgaris.
There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, PV presents with flaccid blistering lesions that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions can involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
There are numerous reports in the literature of PV occurring in previous surgical scars, and areas of friction or trauma. This so-called Koebner’s phenomenon is seen more commonly in several dermatologic conditions, such as psoriasis, lichen planus, verruca vulgaris, and vitiligo.
Treatment for PV is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid sparing agent such as mycophenolate mofetil. Other steroid sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Florida. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cerottini JP et al. Eur J Dermatol. 2000 Oct-Nov;10(7):546-7.
Reichert-Penetrat S et al. Eur J Dermatol. 1998 Jan-Feb;8(1):60-2.
Saini P et al. Skinmed. 2020 Aug 1;18(4):252-253.
A young adult with a 1-year history of erythema, papules, and pustules on her cheeks and skin
. It typically presents with a sudden onset of papules, pustules, cysts, painful inflammatory nodules, and erythema on the centrofacial areas. The etiology is unknown but has been speculated to be hormone-related as it is more common in women and can be triggered by acute changes such as stress or medications.
Because of overlapping symptoms with other conditions, an accurate clinical assessment is crucial. Typically, there are no comedones and about half of the patients have a history of acne. Some cases have shown a possible link between pyoderma faciale with inflammatory bowel disease, thyroid disease and liver disease, highlighting the importance of considering these associations in treatment decisions.
Treatment options for pyoderma faciale include isotretinoin, corticosteroids, dapsone, and antibiotics such as doxycycline. Isotretinoin is usually the first-line treatment, with dapsone reserved for cases where other methods have failed. Despite concerns about isotretinoin exacerbating inflammatory bowel disease (IBD), there has been at least one reported case where a patient with ulcerative colitis who had pyoderma faciale that was successfully treated with isotretinoin with no adverse effects.
Isotretinoin has been shown to be effective in treating pyoderma faciale by significantly reducing inflammation and scarring. This is imperative because the scarring from pyoderma faciale can be disfiguring and psychologically harmful for patients. Therefore, an early diagnosis and effective treatment method are essential in preventing these scars and improving patients’ confidence and overall dermatological care.
This patient’s initial bacterial culture was negative. She was treated with a course of low dose isotretinoin. Prednisone was initiated two weeks before starting isotretinoin and then was tapered off during the first month of isotretinoin treatment. The patient was also started on spironolactone. The course of isotretinoin was 9 months. She has remained clear and still takes oral contraceptive pills and low dose spironolactone.
This case and the photos were submitted by Ms. Towe, Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD, of Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Angileri L et al. J Dermatolog Treat. 2021 Feb;32(1):110-3. doi: 10.1080/09546634.2019.1628175.
Coutinho JC et al. An Bras Dermatol. 2016 Sep-Oct;91(5 suppl 1):151-3. doi: 10.1590/abd1806-4841.20164943.
Rosen T and Unkefer RP. Cutis. 1999 Aug;64(2):107-9.
. It typically presents with a sudden onset of papules, pustules, cysts, painful inflammatory nodules, and erythema on the centrofacial areas. The etiology is unknown but has been speculated to be hormone-related as it is more common in women and can be triggered by acute changes such as stress or medications.
Because of overlapping symptoms with other conditions, an accurate clinical assessment is crucial. Typically, there are no comedones and about half of the patients have a history of acne. Some cases have shown a possible link between pyoderma faciale with inflammatory bowel disease, thyroid disease and liver disease, highlighting the importance of considering these associations in treatment decisions.
Treatment options for pyoderma faciale include isotretinoin, corticosteroids, dapsone, and antibiotics such as doxycycline. Isotretinoin is usually the first-line treatment, with dapsone reserved for cases where other methods have failed. Despite concerns about isotretinoin exacerbating inflammatory bowel disease (IBD), there has been at least one reported case where a patient with ulcerative colitis who had pyoderma faciale that was successfully treated with isotretinoin with no adverse effects.
Isotretinoin has been shown to be effective in treating pyoderma faciale by significantly reducing inflammation and scarring. This is imperative because the scarring from pyoderma faciale can be disfiguring and psychologically harmful for patients. Therefore, an early diagnosis and effective treatment method are essential in preventing these scars and improving patients’ confidence and overall dermatological care.
This patient’s initial bacterial culture was negative. She was treated with a course of low dose isotretinoin. Prednisone was initiated two weeks before starting isotretinoin and then was tapered off during the first month of isotretinoin treatment. The patient was also started on spironolactone. The course of isotretinoin was 9 months. She has remained clear and still takes oral contraceptive pills and low dose spironolactone.
This case and the photos were submitted by Ms. Towe, Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD, of Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Angileri L et al. J Dermatolog Treat. 2021 Feb;32(1):110-3. doi: 10.1080/09546634.2019.1628175.
Coutinho JC et al. An Bras Dermatol. 2016 Sep-Oct;91(5 suppl 1):151-3. doi: 10.1590/abd1806-4841.20164943.
Rosen T and Unkefer RP. Cutis. 1999 Aug;64(2):107-9.
. It typically presents with a sudden onset of papules, pustules, cysts, painful inflammatory nodules, and erythema on the centrofacial areas. The etiology is unknown but has been speculated to be hormone-related as it is more common in women and can be triggered by acute changes such as stress or medications.
Because of overlapping symptoms with other conditions, an accurate clinical assessment is crucial. Typically, there are no comedones and about half of the patients have a history of acne. Some cases have shown a possible link between pyoderma faciale with inflammatory bowel disease, thyroid disease and liver disease, highlighting the importance of considering these associations in treatment decisions.
Treatment options for pyoderma faciale include isotretinoin, corticosteroids, dapsone, and antibiotics such as doxycycline. Isotretinoin is usually the first-line treatment, with dapsone reserved for cases where other methods have failed. Despite concerns about isotretinoin exacerbating inflammatory bowel disease (IBD), there has been at least one reported case where a patient with ulcerative colitis who had pyoderma faciale that was successfully treated with isotretinoin with no adverse effects.
Isotretinoin has been shown to be effective in treating pyoderma faciale by significantly reducing inflammation and scarring. This is imperative because the scarring from pyoderma faciale can be disfiguring and psychologically harmful for patients. Therefore, an early diagnosis and effective treatment method are essential in preventing these scars and improving patients’ confidence and overall dermatological care.
This patient’s initial bacterial culture was negative. She was treated with a course of low dose isotretinoin. Prednisone was initiated two weeks before starting isotretinoin and then was tapered off during the first month of isotretinoin treatment. The patient was also started on spironolactone. The course of isotretinoin was 9 months. She has remained clear and still takes oral contraceptive pills and low dose spironolactone.
This case and the photos were submitted by Ms. Towe, Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD, of Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Angileri L et al. J Dermatolog Treat. 2021 Feb;32(1):110-3. doi: 10.1080/09546634.2019.1628175.
Coutinho JC et al. An Bras Dermatol. 2016 Sep-Oct;91(5 suppl 1):151-3. doi: 10.1590/abd1806-4841.20164943.
Rosen T and Unkefer RP. Cutis. 1999 Aug;64(2):107-9.
A 55-year-old female presented a with few years' history of pruritic plaques on her shins and wrists
. Lesions may have a covering of scale. HLP commonly affects middle aged men and women. Lesions are most commonly located bilaterally on the shins and ankles and can be painful or pruritic. The differential diagnosis for the condition includes lichen simplex chronicus, connective tissue disease, and other skin disorders that cause hyperkeratosis. This wide differential makes histopathological analysis a useful tool in confirming the diagnosis of HLP.
A definitive diagnosis can be made via skin biopsy. Histopathology reveals hyperkeratosis, acanthosis, and a band-like lymphocytic infiltrate in the dermis. An eosinophilic infiltrate may be present. Other common features include saw tooth rete ridges and Civatte bodies, which are apoptotic keratinocytes. The lymphocytic infiltrate may indicate an autoimmune etiology in which the body’s immune system erroneously attacks itself. However, the exact cause is not known and genetic and environmental factors may play a role.
The treatment of HLP includes symptomatic management and control of inflammation. Topical steroids can be prescribed to manage the inflammation and associated pruritus, and emollient creams and moisturizers are helpful in controlling the dryness. Oral steroids, immunosuppressant medications, or retinoids may be necessary in more severe cases. In addition, psoralen plus ultraviolet A (PUVA) light therapy has been found to be beneficial in some cases. Squamous cell carcinoma may arise in lesions.
This case and photo were submitted by Lucas Shapiro, BS, of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD; Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Arnold DL, Krishnamurthy K. Lichen Planus. [Updated 2023 Jun 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK526126/
Jaime TJ et al. An Bras Dermatol. 2011 Jul-Aug;86(4 Suppl 1):S96-9.
Mirchandani S et al. Med Pharm Rep. 2020 Apr;93(2):210-2. .
Whittington CP et al. Arch Pathol Lab Med. 2023 Jun 19. doi: 10.5858/arpa.2022-0515-RA.
. Lesions may have a covering of scale. HLP commonly affects middle aged men and women. Lesions are most commonly located bilaterally on the shins and ankles and can be painful or pruritic. The differential diagnosis for the condition includes lichen simplex chronicus, connective tissue disease, and other skin disorders that cause hyperkeratosis. This wide differential makes histopathological analysis a useful tool in confirming the diagnosis of HLP.
A definitive diagnosis can be made via skin biopsy. Histopathology reveals hyperkeratosis, acanthosis, and a band-like lymphocytic infiltrate in the dermis. An eosinophilic infiltrate may be present. Other common features include saw tooth rete ridges and Civatte bodies, which are apoptotic keratinocytes. The lymphocytic infiltrate may indicate an autoimmune etiology in which the body’s immune system erroneously attacks itself. However, the exact cause is not known and genetic and environmental factors may play a role.
The treatment of HLP includes symptomatic management and control of inflammation. Topical steroids can be prescribed to manage the inflammation and associated pruritus, and emollient creams and moisturizers are helpful in controlling the dryness. Oral steroids, immunosuppressant medications, or retinoids may be necessary in more severe cases. In addition, psoralen plus ultraviolet A (PUVA) light therapy has been found to be beneficial in some cases. Squamous cell carcinoma may arise in lesions.
This case and photo were submitted by Lucas Shapiro, BS, of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD; Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Arnold DL, Krishnamurthy K. Lichen Planus. [Updated 2023 Jun 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK526126/
Jaime TJ et al. An Bras Dermatol. 2011 Jul-Aug;86(4 Suppl 1):S96-9.
Mirchandani S et al. Med Pharm Rep. 2020 Apr;93(2):210-2. .
Whittington CP et al. Arch Pathol Lab Med. 2023 Jun 19. doi: 10.5858/arpa.2022-0515-RA.
. Lesions may have a covering of scale. HLP commonly affects middle aged men and women. Lesions are most commonly located bilaterally on the shins and ankles and can be painful or pruritic. The differential diagnosis for the condition includes lichen simplex chronicus, connective tissue disease, and other skin disorders that cause hyperkeratosis. This wide differential makes histopathological analysis a useful tool in confirming the diagnosis of HLP.
A definitive diagnosis can be made via skin biopsy. Histopathology reveals hyperkeratosis, acanthosis, and a band-like lymphocytic infiltrate in the dermis. An eosinophilic infiltrate may be present. Other common features include saw tooth rete ridges and Civatte bodies, which are apoptotic keratinocytes. The lymphocytic infiltrate may indicate an autoimmune etiology in which the body’s immune system erroneously attacks itself. However, the exact cause is not known and genetic and environmental factors may play a role.
The treatment of HLP includes symptomatic management and control of inflammation. Topical steroids can be prescribed to manage the inflammation and associated pruritus, and emollient creams and moisturizers are helpful in controlling the dryness. Oral steroids, immunosuppressant medications, or retinoids may be necessary in more severe cases. In addition, psoralen plus ultraviolet A (PUVA) light therapy has been found to be beneficial in some cases. Squamous cell carcinoma may arise in lesions.
This case and photo were submitted by Lucas Shapiro, BS, of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Florida, and Donna Bilu Martin, MD; Premier Dermatology, MD, Aventura, Florida. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Arnold DL, Krishnamurthy K. Lichen Planus. [Updated 2023 Jun 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK526126/
Jaime TJ et al. An Bras Dermatol. 2011 Jul-Aug;86(4 Suppl 1):S96-9.
Mirchandani S et al. Med Pharm Rep. 2020 Apr;93(2):210-2. .
Whittington CP et al. Arch Pathol Lab Med. 2023 Jun 19. doi: 10.5858/arpa.2022-0515-RA.
An 88-year-old Black woman presented with 3 months duration of asymptomatic, violaceous patches on the left breast
Angiosarcomas are uncommon, high-grade malignant tumors of endothelial cell origin that can arise via the lymphatics or vasculature. They typically occur spontaneously; however, there have been cases reported of benign vascular transformation. These tumors are more commonly found in elderly men on the head and neck in sun-damaged skin. . This is a late complication, typically occurring about 5-10 years after radiation. Stewart-Treves syndrome, chronic lymphedema occurring after breast cancer treatment with axillary node dissection, increases the risk of angiosarcoma. As a vascular tumor, angiosarcoma spreads hematogenously and carries a poor prognosis if not caught early. Differential diagnoses include other vascular tumors such as retiform hemangioendothelioma. In this specific patient, the differential diagnosis includes Paget’s disease, chronic radiation skin changes, and eczema.
Histopathologically, angiosarcomas exhibit abnormal, pleomorphic, malignant endothelial cells. As the tumor progresses, the cell architecture becomes more distorted and cells form layers with papillary projections into the vascular lumen. Malignant cells may stain positive for CD31, CD34, the oncogene ERG and the proto-oncogene FLI-1. Histology in this patient revealed radiation changes in the dermis, as well as few vascular channels lined by large endothelial cells with marked nuclear atypia, in the form of large nucleoli and variably coarse chromatin. The cells were positive for MYC.
Treatment of angiosarcoma involves a multidisciplinary approach. Resection with wide margins is generally the treatment of choice. However, recurrence is relatively common, which may be a result of microsatellite deposits of the tumor. Perioperative radiation is recommended, and adjuvant chemotherapy often is recommended for metastatic disease. Specifically, paclitaxel has been found to promote survival in some cases of cutaneous angiosarcoma. Metastatic disease may be treated with cytotoxic drugs such as anthracyclines and taxanes. Additionally, targeted therapy including anti-VEGF drugs and tyrosine kinase inhibitors have been tested.
The case and photo were submitted by Mr. Shapiro of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Fla., and Dr. Bilu Martin. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cohen-Hallaleh RB et al. Clin Sarcoma Res. 2017 Aug 7:7:15.
Cozzi S et al. Rep Pract Oncol Radiother. 2021 Sep 30;26(5):827-32.
Spiker AM, Mangla A, Ramsey ML. Angiosarcoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island, Fla.: StatPearls Publishing; 2023 Jan-. Available from: www.ncbi.nlm.nih.gov/books/NBK441983/
Angiosarcomas are uncommon, high-grade malignant tumors of endothelial cell origin that can arise via the lymphatics or vasculature. They typically occur spontaneously; however, there have been cases reported of benign vascular transformation. These tumors are more commonly found in elderly men on the head and neck in sun-damaged skin. . This is a late complication, typically occurring about 5-10 years after radiation. Stewart-Treves syndrome, chronic lymphedema occurring after breast cancer treatment with axillary node dissection, increases the risk of angiosarcoma. As a vascular tumor, angiosarcoma spreads hematogenously and carries a poor prognosis if not caught early. Differential diagnoses include other vascular tumors such as retiform hemangioendothelioma. In this specific patient, the differential diagnosis includes Paget’s disease, chronic radiation skin changes, and eczema.
Histopathologically, angiosarcomas exhibit abnormal, pleomorphic, malignant endothelial cells. As the tumor progresses, the cell architecture becomes more distorted and cells form layers with papillary projections into the vascular lumen. Malignant cells may stain positive for CD31, CD34, the oncogene ERG and the proto-oncogene FLI-1. Histology in this patient revealed radiation changes in the dermis, as well as few vascular channels lined by large endothelial cells with marked nuclear atypia, in the form of large nucleoli and variably coarse chromatin. The cells were positive for MYC.
Treatment of angiosarcoma involves a multidisciplinary approach. Resection with wide margins is generally the treatment of choice. However, recurrence is relatively common, which may be a result of microsatellite deposits of the tumor. Perioperative radiation is recommended, and adjuvant chemotherapy often is recommended for metastatic disease. Specifically, paclitaxel has been found to promote survival in some cases of cutaneous angiosarcoma. Metastatic disease may be treated with cytotoxic drugs such as anthracyclines and taxanes. Additionally, targeted therapy including anti-VEGF drugs and tyrosine kinase inhibitors have been tested.
The case and photo were submitted by Mr. Shapiro of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Fla., and Dr. Bilu Martin. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cohen-Hallaleh RB et al. Clin Sarcoma Res. 2017 Aug 7:7:15.
Cozzi S et al. Rep Pract Oncol Radiother. 2021 Sep 30;26(5):827-32.
Spiker AM, Mangla A, Ramsey ML. Angiosarcoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island, Fla.: StatPearls Publishing; 2023 Jan-. Available from: www.ncbi.nlm.nih.gov/books/NBK441983/
Angiosarcomas are uncommon, high-grade malignant tumors of endothelial cell origin that can arise via the lymphatics or vasculature. They typically occur spontaneously; however, there have been cases reported of benign vascular transformation. These tumors are more commonly found in elderly men on the head and neck in sun-damaged skin. . This is a late complication, typically occurring about 5-10 years after radiation. Stewart-Treves syndrome, chronic lymphedema occurring after breast cancer treatment with axillary node dissection, increases the risk of angiosarcoma. As a vascular tumor, angiosarcoma spreads hematogenously and carries a poor prognosis if not caught early. Differential diagnoses include other vascular tumors such as retiform hemangioendothelioma. In this specific patient, the differential diagnosis includes Paget’s disease, chronic radiation skin changes, and eczema.
Histopathologically, angiosarcomas exhibit abnormal, pleomorphic, malignant endothelial cells. As the tumor progresses, the cell architecture becomes more distorted and cells form layers with papillary projections into the vascular lumen. Malignant cells may stain positive for CD31, CD34, the oncogene ERG and the proto-oncogene FLI-1. Histology in this patient revealed radiation changes in the dermis, as well as few vascular channels lined by large endothelial cells with marked nuclear atypia, in the form of large nucleoli and variably coarse chromatin. The cells were positive for MYC.
Treatment of angiosarcoma involves a multidisciplinary approach. Resection with wide margins is generally the treatment of choice. However, recurrence is relatively common, which may be a result of microsatellite deposits of the tumor. Perioperative radiation is recommended, and adjuvant chemotherapy often is recommended for metastatic disease. Specifically, paclitaxel has been found to promote survival in some cases of cutaneous angiosarcoma. Metastatic disease may be treated with cytotoxic drugs such as anthracyclines and taxanes. Additionally, targeted therapy including anti-VEGF drugs and tyrosine kinase inhibitors have been tested.
The case and photo were submitted by Mr. Shapiro of Nova Southeastern University College of Osteopathic Medicine, Fort Lauderdale, Fla., and Dr. Bilu Martin. The column was edited by Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cohen-Hallaleh RB et al. Clin Sarcoma Res. 2017 Aug 7:7:15.
Cozzi S et al. Rep Pract Oncol Radiother. 2021 Sep 30;26(5):827-32.
Spiker AM, Mangla A, Ramsey ML. Angiosarcoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island, Fla.: StatPearls Publishing; 2023 Jan-. Available from: www.ncbi.nlm.nih.gov/books/NBK441983/
A 45-year-old White woman with no significant medical history presented with a 1-month history of lesions on the nose and right cheek
Cultures for bacteria, varicella zoster virus, herpes simplex virus, and mpox virus were all negative. A biopsy revealed suprabasilar acantholysis with follicular involvement in association with blister formation and inflammation. Direct immunofluorescence was positive for suprabasilar IgG and C3 deposition, consistent with pemphigus vulgaris (PV).
. There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, flaccid blistering lesions are present that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions may involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
Treatment is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid-sparing agent such as mycophenolate mofetil. Other steroid-sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
This case and the photos are from Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Cultures for bacteria, varicella zoster virus, herpes simplex virus, and mpox virus were all negative. A biopsy revealed suprabasilar acantholysis with follicular involvement in association with blister formation and inflammation. Direct immunofluorescence was positive for suprabasilar IgG and C3 deposition, consistent with pemphigus vulgaris (PV).
. There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, flaccid blistering lesions are present that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions may involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
Treatment is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid-sparing agent such as mycophenolate mofetil. Other steroid-sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
This case and the photos are from Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
Cultures for bacteria, varicella zoster virus, herpes simplex virus, and mpox virus were all negative. A biopsy revealed suprabasilar acantholysis with follicular involvement in association with blister formation and inflammation. Direct immunofluorescence was positive for suprabasilar IgG and C3 deposition, consistent with pemphigus vulgaris (PV).
. There is likely a genetic predisposition. Medications that may induce pemphigus include penicillamine, nifedipine, or captopril.
Clinically, flaccid blistering lesions are present that may be cutaneous and/or mucosal. Bullae can progress to erosions and crusting, which then heal with pigment alteration but not scarring. The most commonly affected sites are the mouth, intertriginous areas, face, and neck. Mucosal lesions may involve the lips, esophagus, conjunctiva, and genitals.
Biopsy for histology and direct immunofluorescence is important in distinguishing between PV and other blistering disorders. Up to 75% of patients with active disease also have a positive indirect immunofluorescence with circulating IgG.
Treatment is generally immunosuppressive. Systemic therapy usually begins with prednisone and then is transitioned to a steroid-sparing agent such as mycophenolate mofetil. Other steroid-sparing agents include azathioprine, methotrexate, cyclophosphamide, and intravenous immunoglobulin. Secondary infections are possible and should be treated. Topical therapies aimed at reducing pain, especially in mucosal lesions, can be beneficial.
This case and the photos are from Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
A healthy 36-year-old female presented with 4 days of itchy lesions on the right upper extremity
Additionally, Orthopox DNA by PCR and Monkeypox (mpox) virus DNA by PCR were detected. Herpes simplex virus and bacterial viral cultures were negative. Valacyclovir was started at the time of presentation and the patient’s lesions resolved without sequelae.
Mpox is a zoonotic double-stranded DNA virus that is part of the Orthopoxvirus family, including the West African and Central African variants. This disease presents similarly to smallpox, so most mpox research was conducted around the time smallpox was eradicated. It was not until 1970, when the disease was isolated from a patient with suspected smallpox in the Democratic Republic of the Congo (DRC), that human mpox was considered a distinct disease. An epidemic outbreak in the United States occurred in 2003 related to infected prairie dogs, and travel-related outbreaks have been more recently reported up until May 2022, in which mpox was reported in nonendemic areas including North America, Europe, and Australia. Most cases in this outbreak occurred in men who have sex with men (MSM), but this is not always the case, and mpox is not necessarily considered a sexually transmitted infection. Mpox presents similarly to smallpox and VZV, so using laboratory tests is important in diagnosing and tracking this disease.
Although it is not easily transmitted, the disease can spread through bodily secretions both directly and indirectly. Mpox typically begins with a prodrome that includes fever, headache, myalgia, and fatigue. This is followed by lymphadenopathy that precedes and coincides with rash development. The lymph nodes are firm, tender, may be painful, and are a defining factor in presentation that differs from smallpox and varicella. The rash typically starts on the face, then presents on the body in a centrifugal distribution. However, cases related to sexual transmission present with anogenital lesions. The lesions are characterized by a progression from maculopapular to vesiculopustular, and can vary widely in quantity.
Notably, individuals are contagious from the onset of the prodrome until the lesions have scabbed over and fallen off. The eruptive nature of the later lesions poses a threat of secondary infection, and is often accompanied by a second febrile period that signifies deterioration of the patient’s condition. Other signs of secondary infection are variable and include pulmonary symptoms, vomiting, diarrhea, ocular infections, and in rare cases, encephalitis. These sequelae are more common in unvaccinated and immunocompromised individuals. Long-term complications of mpox include pitted scarring from cutaneous lesions with children being more susceptible to severe disease. The mortality rate for the disease is very low. (As of May 10, 2023, there have been 30,395 mpox cases reported in the United States, and 42 deaths, according to the Centers for Disease Control and Prevention.)
There are a variety of diagnostic tests that can aid in mpox identification, but they are most strongly supported when combined with clinical and epidemiological data. The best, least invasive method includes collection of lesion exudate or crust on a swab, and viral DNA is best preserved by keeping the specimen in a cool, dry, and dark environment. PCR is considered the standard, and electron microscopy and immunohistochemistry are valid tests, but all modalities require sophisticated technicians with the proper laboratory equipment. This is limiting because many cases present in underserved areas that lack the facilities for proper, real-time analysis. Antigen and antibody-based tests can be used, but cross-reactivity of other orthopoxviridae limits confirmation of mpox infection. Vaccination status, history and location must be considered.
Vaccination is the chief form of prevention for mpox, although it is not considered entirely protective. Smallpox vaccination provides protection, but widespread administration of the vaccine is no longer practiced, and an estimated 70% of the global population is no longer vaccinated. Vaccination is recommended for anyone at risk of exposure, but as this is a live, attenuated vaccine, the immune status of the patient is important to keep in mind. Tecovirimat and other antiviral medications including cidofovir and brincidofovir may be considered in severe cases.
This case is unique as our patient, who had no known risk factors for mpox, presented with mpox and VZV, simultaneously. Although clinical presentation and epidemiological patterns between these diseases differ, there have been a limited number of cases of coinfection reported in the literature, mainly in the DRC where mpox is endemic. Diagnosis must be made by separate laboratory tests and there are differences in presentation between independent and coinfection for these viruses. Notably, patients with mpox/VZV coinfection may be less likely to present with lesions on the face, thorax, arms, palms, and soles than those with only mpox but experience a higher lesion burden than those afflicted by only VZV. Coinfection may be related to reactivation of dormant VZV, or increased susceptibility to secondary infection when infected with one virus.
This case and photo were submitted by Lucas Shapiro, BS, of the Dr. Kiran C. Patel College of Osteopathic Medicine at Nova Southeastern University, Fort Lauderdale, Fla., and Donna Bilu Martin, MD.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
1. Macneil A et al. Clin Infect Dis. 2009 Jan 1;48(1):e6-8.
2. Di Gennaro F et al. Microorganisms. 2022 Aug 12;10(8):1633.
3. Hughes CM et al. Am J Trop Med Hyg. 2020 Dec 7;104(2):604-11.
Additionally, Orthopox DNA by PCR and Monkeypox (mpox) virus DNA by PCR were detected. Herpes simplex virus and bacterial viral cultures were negative. Valacyclovir was started at the time of presentation and the patient’s lesions resolved without sequelae.
Mpox is a zoonotic double-stranded DNA virus that is part of the Orthopoxvirus family, including the West African and Central African variants. This disease presents similarly to smallpox, so most mpox research was conducted around the time smallpox was eradicated. It was not until 1970, when the disease was isolated from a patient with suspected smallpox in the Democratic Republic of the Congo (DRC), that human mpox was considered a distinct disease. An epidemic outbreak in the United States occurred in 2003 related to infected prairie dogs, and travel-related outbreaks have been more recently reported up until May 2022, in which mpox was reported in nonendemic areas including North America, Europe, and Australia. Most cases in this outbreak occurred in men who have sex with men (MSM), but this is not always the case, and mpox is not necessarily considered a sexually transmitted infection. Mpox presents similarly to smallpox and VZV, so using laboratory tests is important in diagnosing and tracking this disease.
Although it is not easily transmitted, the disease can spread through bodily secretions both directly and indirectly. Mpox typically begins with a prodrome that includes fever, headache, myalgia, and fatigue. This is followed by lymphadenopathy that precedes and coincides with rash development. The lymph nodes are firm, tender, may be painful, and are a defining factor in presentation that differs from smallpox and varicella. The rash typically starts on the face, then presents on the body in a centrifugal distribution. However, cases related to sexual transmission present with anogenital lesions. The lesions are characterized by a progression from maculopapular to vesiculopustular, and can vary widely in quantity.
Notably, individuals are contagious from the onset of the prodrome until the lesions have scabbed over and fallen off. The eruptive nature of the later lesions poses a threat of secondary infection, and is often accompanied by a second febrile period that signifies deterioration of the patient’s condition. Other signs of secondary infection are variable and include pulmonary symptoms, vomiting, diarrhea, ocular infections, and in rare cases, encephalitis. These sequelae are more common in unvaccinated and immunocompromised individuals. Long-term complications of mpox include pitted scarring from cutaneous lesions with children being more susceptible to severe disease. The mortality rate for the disease is very low. (As of May 10, 2023, there have been 30,395 mpox cases reported in the United States, and 42 deaths, according to the Centers for Disease Control and Prevention.)
There are a variety of diagnostic tests that can aid in mpox identification, but they are most strongly supported when combined with clinical and epidemiological data. The best, least invasive method includes collection of lesion exudate or crust on a swab, and viral DNA is best preserved by keeping the specimen in a cool, dry, and dark environment. PCR is considered the standard, and electron microscopy and immunohistochemistry are valid tests, but all modalities require sophisticated technicians with the proper laboratory equipment. This is limiting because many cases present in underserved areas that lack the facilities for proper, real-time analysis. Antigen and antibody-based tests can be used, but cross-reactivity of other orthopoxviridae limits confirmation of mpox infection. Vaccination status, history and location must be considered.
Vaccination is the chief form of prevention for mpox, although it is not considered entirely protective. Smallpox vaccination provides protection, but widespread administration of the vaccine is no longer practiced, and an estimated 70% of the global population is no longer vaccinated. Vaccination is recommended for anyone at risk of exposure, but as this is a live, attenuated vaccine, the immune status of the patient is important to keep in mind. Tecovirimat and other antiviral medications including cidofovir and brincidofovir may be considered in severe cases.
This case is unique as our patient, who had no known risk factors for mpox, presented with mpox and VZV, simultaneously. Although clinical presentation and epidemiological patterns between these diseases differ, there have been a limited number of cases of coinfection reported in the literature, mainly in the DRC where mpox is endemic. Diagnosis must be made by separate laboratory tests and there are differences in presentation between independent and coinfection for these viruses. Notably, patients with mpox/VZV coinfection may be less likely to present with lesions on the face, thorax, arms, palms, and soles than those with only mpox but experience a higher lesion burden than those afflicted by only VZV. Coinfection may be related to reactivation of dormant VZV, or increased susceptibility to secondary infection when infected with one virus.
This case and photo were submitted by Lucas Shapiro, BS, of the Dr. Kiran C. Patel College of Osteopathic Medicine at Nova Southeastern University, Fort Lauderdale, Fla., and Donna Bilu Martin, MD.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
1. Macneil A et al. Clin Infect Dis. 2009 Jan 1;48(1):e6-8.
2. Di Gennaro F et al. Microorganisms. 2022 Aug 12;10(8):1633.
3. Hughes CM et al. Am J Trop Med Hyg. 2020 Dec 7;104(2):604-11.
Additionally, Orthopox DNA by PCR and Monkeypox (mpox) virus DNA by PCR were detected. Herpes simplex virus and bacterial viral cultures were negative. Valacyclovir was started at the time of presentation and the patient’s lesions resolved without sequelae.
Mpox is a zoonotic double-stranded DNA virus that is part of the Orthopoxvirus family, including the West African and Central African variants. This disease presents similarly to smallpox, so most mpox research was conducted around the time smallpox was eradicated. It was not until 1970, when the disease was isolated from a patient with suspected smallpox in the Democratic Republic of the Congo (DRC), that human mpox was considered a distinct disease. An epidemic outbreak in the United States occurred in 2003 related to infected prairie dogs, and travel-related outbreaks have been more recently reported up until May 2022, in which mpox was reported in nonendemic areas including North America, Europe, and Australia. Most cases in this outbreak occurred in men who have sex with men (MSM), but this is not always the case, and mpox is not necessarily considered a sexually transmitted infection. Mpox presents similarly to smallpox and VZV, so using laboratory tests is important in diagnosing and tracking this disease.
Although it is not easily transmitted, the disease can spread through bodily secretions both directly and indirectly. Mpox typically begins with a prodrome that includes fever, headache, myalgia, and fatigue. This is followed by lymphadenopathy that precedes and coincides with rash development. The lymph nodes are firm, tender, may be painful, and are a defining factor in presentation that differs from smallpox and varicella. The rash typically starts on the face, then presents on the body in a centrifugal distribution. However, cases related to sexual transmission present with anogenital lesions. The lesions are characterized by a progression from maculopapular to vesiculopustular, and can vary widely in quantity.
Notably, individuals are contagious from the onset of the prodrome until the lesions have scabbed over and fallen off. The eruptive nature of the later lesions poses a threat of secondary infection, and is often accompanied by a second febrile period that signifies deterioration of the patient’s condition. Other signs of secondary infection are variable and include pulmonary symptoms, vomiting, diarrhea, ocular infections, and in rare cases, encephalitis. These sequelae are more common in unvaccinated and immunocompromised individuals. Long-term complications of mpox include pitted scarring from cutaneous lesions with children being more susceptible to severe disease. The mortality rate for the disease is very low. (As of May 10, 2023, there have been 30,395 mpox cases reported in the United States, and 42 deaths, according to the Centers for Disease Control and Prevention.)
There are a variety of diagnostic tests that can aid in mpox identification, but they are most strongly supported when combined with clinical and epidemiological data. The best, least invasive method includes collection of lesion exudate or crust on a swab, and viral DNA is best preserved by keeping the specimen in a cool, dry, and dark environment. PCR is considered the standard, and electron microscopy and immunohistochemistry are valid tests, but all modalities require sophisticated technicians with the proper laboratory equipment. This is limiting because many cases present in underserved areas that lack the facilities for proper, real-time analysis. Antigen and antibody-based tests can be used, but cross-reactivity of other orthopoxviridae limits confirmation of mpox infection. Vaccination status, history and location must be considered.
Vaccination is the chief form of prevention for mpox, although it is not considered entirely protective. Smallpox vaccination provides protection, but widespread administration of the vaccine is no longer practiced, and an estimated 70% of the global population is no longer vaccinated. Vaccination is recommended for anyone at risk of exposure, but as this is a live, attenuated vaccine, the immune status of the patient is important to keep in mind. Tecovirimat and other antiviral medications including cidofovir and brincidofovir may be considered in severe cases.
This case is unique as our patient, who had no known risk factors for mpox, presented with mpox and VZV, simultaneously. Although clinical presentation and epidemiological patterns between these diseases differ, there have been a limited number of cases of coinfection reported in the literature, mainly in the DRC where mpox is endemic. Diagnosis must be made by separate laboratory tests and there are differences in presentation between independent and coinfection for these viruses. Notably, patients with mpox/VZV coinfection may be less likely to present with lesions on the face, thorax, arms, palms, and soles than those with only mpox but experience a higher lesion burden than those afflicted by only VZV. Coinfection may be related to reactivation of dormant VZV, or increased susceptibility to secondary infection when infected with one virus.
This case and photo were submitted by Lucas Shapiro, BS, of the Dr. Kiran C. Patel College of Osteopathic Medicine at Nova Southeastern University, Fort Lauderdale, Fla., and Donna Bilu Martin, MD.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
1. Macneil A et al. Clin Infect Dis. 2009 Jan 1;48(1):e6-8.
2. Di Gennaro F et al. Microorganisms. 2022 Aug 12;10(8):1633.
3. Hughes CM et al. Am J Trop Med Hyg. 2020 Dec 7;104(2):604-11.
White male presents with pruritic, scaly, erythematous patches on his feet and left hand
Two feet–one hand syndrome
This condition, also known as ringworm, is a fungal infection caused by a dermatophyte, and presents as a superficial annular or circular rash with a raised, scaly border.
Symptoms include dryness and itchiness, and the lesions may appear red-pink on lighter skin and gray-brown on darker skin types. Although these infections can arise in a variety of combinations, two feet–one hand syndrome occurs in about 60% of cases. Trichophyton rubrum is the most common agent.
Diagnosis is made by patient history, dermoscopic visualization, and staining of skin scraping with KOH or fungal culture. Dermatophytes prefer moist, warm environments, so this disease is prevalent in tropical conditions and associated with moist public areas such as locker rooms and showers. As a result, tinea pedis is also nicknamed “athlete’s foot” for its common presentation in athletes. The fungus spreads easily through contact and can survive on infected surfaces, so patients often self-inoculate by touching/scratching the affected area then touching another body part. Cautions that should be taken to avoid transmission include not sharing personal care products, washing the area and keeping it dry, and avoiding close, humid environments.
The syndrome is highly associated with onychomycosis, which can be more difficult to treat and often requires oral antifungals. Tinea manuum is commonly misdiagnosed as hand dermatitis or eczema and treated with topical steroids, which will exacerbate or flare the tinea.
Two feet–one hand syndrome can typically be treated with over-the-counter topical antifungal medications such as miconazole or clotrimazole. Topical ketoconazole may be prescribed, and oral terbinafine or itraconazole are used in more severe cases when a larger body surface area is affected or in immunocompromised patients.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Davie, Fla.; Kiran C. Patel, Tampa Bay Regional Campus; and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cleveland Clinic. Tinea manuum: Symptoms, causes & treatment. 2022. https://my.clevelandclinic.org/health/diseases/24063-tinea-manuum.
Ugalde-Trejo NX et al. Curr Fungal Infect Rep. 2022 Nov 17. doi: 10.1007/s12281-022-00447-9.
Mizumoto J. Cureus. 2021 Dec 27;13(12):e20758.
Two feet–one hand syndrome
This condition, also known as ringworm, is a fungal infection caused by a dermatophyte, and presents as a superficial annular or circular rash with a raised, scaly border.
Symptoms include dryness and itchiness, and the lesions may appear red-pink on lighter skin and gray-brown on darker skin types. Although these infections can arise in a variety of combinations, two feet–one hand syndrome occurs in about 60% of cases. Trichophyton rubrum is the most common agent.
Diagnosis is made by patient history, dermoscopic visualization, and staining of skin scraping with KOH or fungal culture. Dermatophytes prefer moist, warm environments, so this disease is prevalent in tropical conditions and associated with moist public areas such as locker rooms and showers. As a result, tinea pedis is also nicknamed “athlete’s foot” for its common presentation in athletes. The fungus spreads easily through contact and can survive on infected surfaces, so patients often self-inoculate by touching/scratching the affected area then touching another body part. Cautions that should be taken to avoid transmission include not sharing personal care products, washing the area and keeping it dry, and avoiding close, humid environments.
The syndrome is highly associated with onychomycosis, which can be more difficult to treat and often requires oral antifungals. Tinea manuum is commonly misdiagnosed as hand dermatitis or eczema and treated with topical steroids, which will exacerbate or flare the tinea.
Two feet–one hand syndrome can typically be treated with over-the-counter topical antifungal medications such as miconazole or clotrimazole. Topical ketoconazole may be prescribed, and oral terbinafine or itraconazole are used in more severe cases when a larger body surface area is affected or in immunocompromised patients.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Davie, Fla.; Kiran C. Patel, Tampa Bay Regional Campus; and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cleveland Clinic. Tinea manuum: Symptoms, causes & treatment. 2022. https://my.clevelandclinic.org/health/diseases/24063-tinea-manuum.
Ugalde-Trejo NX et al. Curr Fungal Infect Rep. 2022 Nov 17. doi: 10.1007/s12281-022-00447-9.
Mizumoto J. Cureus. 2021 Dec 27;13(12):e20758.
Two feet–one hand syndrome
This condition, also known as ringworm, is a fungal infection caused by a dermatophyte, and presents as a superficial annular or circular rash with a raised, scaly border.
Symptoms include dryness and itchiness, and the lesions may appear red-pink on lighter skin and gray-brown on darker skin types. Although these infections can arise in a variety of combinations, two feet–one hand syndrome occurs in about 60% of cases. Trichophyton rubrum is the most common agent.
Diagnosis is made by patient history, dermoscopic visualization, and staining of skin scraping with KOH or fungal culture. Dermatophytes prefer moist, warm environments, so this disease is prevalent in tropical conditions and associated with moist public areas such as locker rooms and showers. As a result, tinea pedis is also nicknamed “athlete’s foot” for its common presentation in athletes. The fungus spreads easily through contact and can survive on infected surfaces, so patients often self-inoculate by touching/scratching the affected area then touching another body part. Cautions that should be taken to avoid transmission include not sharing personal care products, washing the area and keeping it dry, and avoiding close, humid environments.
The syndrome is highly associated with onychomycosis, which can be more difficult to treat and often requires oral antifungals. Tinea manuum is commonly misdiagnosed as hand dermatitis or eczema and treated with topical steroids, which will exacerbate or flare the tinea.
Two feet–one hand syndrome can typically be treated with over-the-counter topical antifungal medications such as miconazole or clotrimazole. Topical ketoconazole may be prescribed, and oral terbinafine or itraconazole are used in more severe cases when a larger body surface area is affected or in immunocompromised patients.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Davie, Fla.; Kiran C. Patel, Tampa Bay Regional Campus; and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Cleveland Clinic. Tinea manuum: Symptoms, causes & treatment. 2022. https://my.clevelandclinic.org/health/diseases/24063-tinea-manuum.
Ugalde-Trejo NX et al. Curr Fungal Infect Rep. 2022 Nov 17. doi: 10.1007/s12281-022-00447-9.
Mizumoto J. Cureus. 2021 Dec 27;13(12):e20758.
A 50-year-old woman with no significant history presented with erythematous, annular plaques, and papules on the dorsal hands and arms
. The prevalence and incidence is approximately 0.1%-0.4%. Although the condition is benign, it may be associated with more serious conditions such as HIV and malignancy. GA affects women more frequently than men but can affect any age group, although it most commonly presents in those ages 30 years and younger. While the exact etiology is unknown, GA has been most strongly associated with diabetes mellitus, hyperlipidemia, and autoimmune diseases.
The disease presents as localized, annular erythematous plaques and papules on the dorsal hands and feet in approximately 75% of cases. However, eruptions may appear on the trunk and extremities and can be categorized into patchy, generalized, interstitial, subcutaneous, or perforating subtypes. The lesions are often asymptomatic and typically not associated with any other symptoms.
The pathogenesis of GA is still under investigation, but recent studies suggest that a Th1-mediated dysregulation of the JAK-STAT pathway may contribute to the disease. Other hypotheses include a delayed hypersensitivity reaction or cell mediated immune response. The mechanism may be multifaceted, and epidemiologic research suggests a genetic predisposition in White individuals, but these findings may be associated with socioeconomic factors and disparities in health care.
GA presents on histology with palisading histiocytes surrounding focal collagen necrobiosis with mucin deposition. Tissue samples also display leukocytic infiltration of the dermis featuring multinucleated giant cells. There are defining features of the different subtypes, but focal collagen necrosis, the presence of histiocytes, and mucin deposition are consistent findings across all presentations.
GA lesions commonly regress on their own, but they tend to recur and can be functionally and visually unappealing to patients. The most common treatments for GA include topical corticosteroids, intralesional corticosteroid injections, and other anti-inflammatory drugs. These interventions can be administered in a variety of ways as the inflammation caused by GA exists on a spectrum, and less severe cases can be managed with topical or intralesional treatment. Systemic therapy may be necessary for severe and recalcitrant cases. Other interventions that have shown promise in smaller studies include phototherapy, hydroxychloroquine, and TNF-alpha inhibitors.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University College of Osteopathic Medicine, Tampa Bay Regional Campus, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Joshi TP and Duvic M. Am J Clin Dermatol. 2022 Jan;23(1):37-50. doi: 10.1007/s40257-021-00636-1.
Muse M et al. Dermatol Online J. 2021 Apr 15;27(4):13030/qt0m50398n.
Schmieder SJ et al. Granuloma Annulare. NIH National Center for Biotechnology Information [Updated 2022 Nov 7]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan. 7.
. The prevalence and incidence is approximately 0.1%-0.4%. Although the condition is benign, it may be associated with more serious conditions such as HIV and malignancy. GA affects women more frequently than men but can affect any age group, although it most commonly presents in those ages 30 years and younger. While the exact etiology is unknown, GA has been most strongly associated with diabetes mellitus, hyperlipidemia, and autoimmune diseases.
The disease presents as localized, annular erythematous plaques and papules on the dorsal hands and feet in approximately 75% of cases. However, eruptions may appear on the trunk and extremities and can be categorized into patchy, generalized, interstitial, subcutaneous, or perforating subtypes. The lesions are often asymptomatic and typically not associated with any other symptoms.
The pathogenesis of GA is still under investigation, but recent studies suggest that a Th1-mediated dysregulation of the JAK-STAT pathway may contribute to the disease. Other hypotheses include a delayed hypersensitivity reaction or cell mediated immune response. The mechanism may be multifaceted, and epidemiologic research suggests a genetic predisposition in White individuals, but these findings may be associated with socioeconomic factors and disparities in health care.
GA presents on histology with palisading histiocytes surrounding focal collagen necrobiosis with mucin deposition. Tissue samples also display leukocytic infiltration of the dermis featuring multinucleated giant cells. There are defining features of the different subtypes, but focal collagen necrosis, the presence of histiocytes, and mucin deposition are consistent findings across all presentations.
GA lesions commonly regress on their own, but they tend to recur and can be functionally and visually unappealing to patients. The most common treatments for GA include topical corticosteroids, intralesional corticosteroid injections, and other anti-inflammatory drugs. These interventions can be administered in a variety of ways as the inflammation caused by GA exists on a spectrum, and less severe cases can be managed with topical or intralesional treatment. Systemic therapy may be necessary for severe and recalcitrant cases. Other interventions that have shown promise in smaller studies include phototherapy, hydroxychloroquine, and TNF-alpha inhibitors.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University College of Osteopathic Medicine, Tampa Bay Regional Campus, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Joshi TP and Duvic M. Am J Clin Dermatol. 2022 Jan;23(1):37-50. doi: 10.1007/s40257-021-00636-1.
Muse M et al. Dermatol Online J. 2021 Apr 15;27(4):13030/qt0m50398n.
Schmieder SJ et al. Granuloma Annulare. NIH National Center for Biotechnology Information [Updated 2022 Nov 7]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan. 7.
. The prevalence and incidence is approximately 0.1%-0.4%. Although the condition is benign, it may be associated with more serious conditions such as HIV and malignancy. GA affects women more frequently than men but can affect any age group, although it most commonly presents in those ages 30 years and younger. While the exact etiology is unknown, GA has been most strongly associated with diabetes mellitus, hyperlipidemia, and autoimmune diseases.
The disease presents as localized, annular erythematous plaques and papules on the dorsal hands and feet in approximately 75% of cases. However, eruptions may appear on the trunk and extremities and can be categorized into patchy, generalized, interstitial, subcutaneous, or perforating subtypes. The lesions are often asymptomatic and typically not associated with any other symptoms.
The pathogenesis of GA is still under investigation, but recent studies suggest that a Th1-mediated dysregulation of the JAK-STAT pathway may contribute to the disease. Other hypotheses include a delayed hypersensitivity reaction or cell mediated immune response. The mechanism may be multifaceted, and epidemiologic research suggests a genetic predisposition in White individuals, but these findings may be associated with socioeconomic factors and disparities in health care.
GA presents on histology with palisading histiocytes surrounding focal collagen necrobiosis with mucin deposition. Tissue samples also display leukocytic infiltration of the dermis featuring multinucleated giant cells. There are defining features of the different subtypes, but focal collagen necrosis, the presence of histiocytes, and mucin deposition are consistent findings across all presentations.
GA lesions commonly regress on their own, but they tend to recur and can be functionally and visually unappealing to patients. The most common treatments for GA include topical corticosteroids, intralesional corticosteroid injections, and other anti-inflammatory drugs. These interventions can be administered in a variety of ways as the inflammation caused by GA exists on a spectrum, and less severe cases can be managed with topical or intralesional treatment. Systemic therapy may be necessary for severe and recalcitrant cases. Other interventions that have shown promise in smaller studies include phototherapy, hydroxychloroquine, and TNF-alpha inhibitors.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University College of Osteopathic Medicine, Tampa Bay Regional Campus, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Joshi TP and Duvic M. Am J Clin Dermatol. 2022 Jan;23(1):37-50. doi: 10.1007/s40257-021-00636-1.
Muse M et al. Dermatol Online J. 2021 Apr 15;27(4):13030/qt0m50398n.
Schmieder SJ et al. Granuloma Annulare. NIH National Center for Biotechnology Information [Updated 2022 Nov 7]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan. 7.
A 9-year old female presented with 1 day of fever, fatigue, and sore throat
This condition typically presents in the setting of Streptococcus pyogenes pharyngitis, or strep throat, and is spread via mucosal transfer in close proximity such as classrooms and nurseries. The dermatologic symptoms are a result of the endotoxin produced by S. pyogenes, which is part of the group A Strep bacteria. Clinically, the presentation can be differentiated from an allergic eruption by its relation to acute pharyngitis, insidious onset, and lack of confluence of the lesions. Diagnosis is supported by a throat culture and rapid strep test, although a rapid test lacks reliability in older patients who are less commonly affected and likely to be carriers. First-line treatment is penicillin or amoxicillin, but first-generation cephalosporins, clindamycin, or erythromycin are sufficient if the patient is allergic to penicillins. Prognosis worsens as time between onset and treatment increases, but is overall excellent now with the introduction of antibiotics and improved hygiene.
Scarlet fever is among a list of many common childhood rashes, and it can be difficult to differentiate between these pathologies on clinical presentation. A few notable childhood dermatologic eruptions include erythema infectiosum (fifth disease), roseola (exanthema subitum or sixth disease), and measles. These cases can be distinguished clinically by the age of the patient, distribution, and quality of the symptoms. Laboratory testing may be used to confirm the diagnosis.
Erythema infectiosum is known as fifth disease or slapped-cheek rash because it commonly presents on the cheeks as a pink, maculopapular rash in a reticular pattern. The disease is caused by parvovirus B19 and is accompanied by low fever, malaise, headache, sore throat, and nausea, which precedes the erythematous rash. The facial rash appears first and is followed by patchy eruptions on the extremities. Appearance of the rash typically indicates the patient is no longer contagious, and patients are treated symptomatically with NSAIDs and antihistamines for associated pruritus.
Roseola infantum is commonly caused by human herpesvirus 6 and is usually found in children 3 years and younger. The defining symptom is a high fever, which is paired with a mild cough, runny nose, and diarrhea. A maculopapular rash appears after the fever subsides, starting centrally and spreading outward to the extremities. Although this rash is similar to measles, they can be differentiated by the order of onset. The rash caused by measles begins on the face and mouth (Koplik spots) and moves downward. Additionally, the patient appears generally healthy and the disease is self-limiting in roseola, while patients with measles will appear more ill and require further attention. Measles is caused by the measles virus of the genus Morbillivirus and is highly contagious. It is spread via respiratory route presenting with fever, cough, coryza, and conjunctivitis followed by the rash. Fortunately, the measles vaccine is in widespread use, so cases have declined over the years.
Our patient had a positive strep test. Influenza and coronavirus tests were negative. She was started on daily amoxicillin and the rash resolved within 2 days of taking the antibiotics.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Tampa, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Allmon A et al.. Am Fam Physician. 2015 Aug 1;92(3):211-6.
Moss WJ. Lancet. 2017 Dec 2;390(10111):2490-502.
Mullins TB and Krishnamurthy K. Roseola Infantum, in “StatPearls.” Treasure Islan, Fla.: StatPearls Publishing, 2022.
Pardo S and Perera TB. Scarlet Fever, in “StatPearls.” Treasure Island, Fla.: StatPearls Publishing, 2022.
This condition typically presents in the setting of Streptococcus pyogenes pharyngitis, or strep throat, and is spread via mucosal transfer in close proximity such as classrooms and nurseries. The dermatologic symptoms are a result of the endotoxin produced by S. pyogenes, which is part of the group A Strep bacteria. Clinically, the presentation can be differentiated from an allergic eruption by its relation to acute pharyngitis, insidious onset, and lack of confluence of the lesions. Diagnosis is supported by a throat culture and rapid strep test, although a rapid test lacks reliability in older patients who are less commonly affected and likely to be carriers. First-line treatment is penicillin or amoxicillin, but first-generation cephalosporins, clindamycin, or erythromycin are sufficient if the patient is allergic to penicillins. Prognosis worsens as time between onset and treatment increases, but is overall excellent now with the introduction of antibiotics and improved hygiene.
Scarlet fever is among a list of many common childhood rashes, and it can be difficult to differentiate between these pathologies on clinical presentation. A few notable childhood dermatologic eruptions include erythema infectiosum (fifth disease), roseola (exanthema subitum or sixth disease), and measles. These cases can be distinguished clinically by the age of the patient, distribution, and quality of the symptoms. Laboratory testing may be used to confirm the diagnosis.
Erythema infectiosum is known as fifth disease or slapped-cheek rash because it commonly presents on the cheeks as a pink, maculopapular rash in a reticular pattern. The disease is caused by parvovirus B19 and is accompanied by low fever, malaise, headache, sore throat, and nausea, which precedes the erythematous rash. The facial rash appears first and is followed by patchy eruptions on the extremities. Appearance of the rash typically indicates the patient is no longer contagious, and patients are treated symptomatically with NSAIDs and antihistamines for associated pruritus.
Roseola infantum is commonly caused by human herpesvirus 6 and is usually found in children 3 years and younger. The defining symptom is a high fever, which is paired with a mild cough, runny nose, and diarrhea. A maculopapular rash appears after the fever subsides, starting centrally and spreading outward to the extremities. Although this rash is similar to measles, they can be differentiated by the order of onset. The rash caused by measles begins on the face and mouth (Koplik spots) and moves downward. Additionally, the patient appears generally healthy and the disease is self-limiting in roseola, while patients with measles will appear more ill and require further attention. Measles is caused by the measles virus of the genus Morbillivirus and is highly contagious. It is spread via respiratory route presenting with fever, cough, coryza, and conjunctivitis followed by the rash. Fortunately, the measles vaccine is in widespread use, so cases have declined over the years.
Our patient had a positive strep test. Influenza and coronavirus tests were negative. She was started on daily amoxicillin and the rash resolved within 2 days of taking the antibiotics.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Tampa, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Allmon A et al.. Am Fam Physician. 2015 Aug 1;92(3):211-6.
Moss WJ. Lancet. 2017 Dec 2;390(10111):2490-502.
Mullins TB and Krishnamurthy K. Roseola Infantum, in “StatPearls.” Treasure Islan, Fla.: StatPearls Publishing, 2022.
Pardo S and Perera TB. Scarlet Fever, in “StatPearls.” Treasure Island, Fla.: StatPearls Publishing, 2022.
This condition typically presents in the setting of Streptococcus pyogenes pharyngitis, or strep throat, and is spread via mucosal transfer in close proximity such as classrooms and nurseries. The dermatologic symptoms are a result of the endotoxin produced by S. pyogenes, which is part of the group A Strep bacteria. Clinically, the presentation can be differentiated from an allergic eruption by its relation to acute pharyngitis, insidious onset, and lack of confluence of the lesions. Diagnosis is supported by a throat culture and rapid strep test, although a rapid test lacks reliability in older patients who are less commonly affected and likely to be carriers. First-line treatment is penicillin or amoxicillin, but first-generation cephalosporins, clindamycin, or erythromycin are sufficient if the patient is allergic to penicillins. Prognosis worsens as time between onset and treatment increases, but is overall excellent now with the introduction of antibiotics and improved hygiene.
Scarlet fever is among a list of many common childhood rashes, and it can be difficult to differentiate between these pathologies on clinical presentation. A few notable childhood dermatologic eruptions include erythema infectiosum (fifth disease), roseola (exanthema subitum or sixth disease), and measles. These cases can be distinguished clinically by the age of the patient, distribution, and quality of the symptoms. Laboratory testing may be used to confirm the diagnosis.
Erythema infectiosum is known as fifth disease or slapped-cheek rash because it commonly presents on the cheeks as a pink, maculopapular rash in a reticular pattern. The disease is caused by parvovirus B19 and is accompanied by low fever, malaise, headache, sore throat, and nausea, which precedes the erythematous rash. The facial rash appears first and is followed by patchy eruptions on the extremities. Appearance of the rash typically indicates the patient is no longer contagious, and patients are treated symptomatically with NSAIDs and antihistamines for associated pruritus.
Roseola infantum is commonly caused by human herpesvirus 6 and is usually found in children 3 years and younger. The defining symptom is a high fever, which is paired with a mild cough, runny nose, and diarrhea. A maculopapular rash appears after the fever subsides, starting centrally and spreading outward to the extremities. Although this rash is similar to measles, they can be differentiated by the order of onset. The rash caused by measles begins on the face and mouth (Koplik spots) and moves downward. Additionally, the patient appears generally healthy and the disease is self-limiting in roseola, while patients with measles will appear more ill and require further attention. Measles is caused by the measles virus of the genus Morbillivirus and is highly contagious. It is spread via respiratory route presenting with fever, cough, coryza, and conjunctivitis followed by the rash. Fortunately, the measles vaccine is in widespread use, so cases have declined over the years.
Our patient had a positive strep test. Influenza and coronavirus tests were negative. She was started on daily amoxicillin and the rash resolved within 2 days of taking the antibiotics.
This case and photo were submitted by Lucas Shapiro, BS, Nova Southeastern University, Tampa, and Dr. Bilu Martin.
Dr. Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to dermnews@mdedge.com.
References
Allmon A et al.. Am Fam Physician. 2015 Aug 1;92(3):211-6.
Moss WJ. Lancet. 2017 Dec 2;390(10111):2490-502.
Mullins TB and Krishnamurthy K. Roseola Infantum, in “StatPearls.” Treasure Islan, Fla.: StatPearls Publishing, 2022.
Pardo S and Perera TB. Scarlet Fever, in “StatPearls.” Treasure Island, Fla.: StatPearls Publishing, 2022.
