Dermpath Diagnosis

Woody Erythematous Induration on the Posterior Neck

A 39-year-old white woman with a medical history of type 1 diabetes mellitus and rheumatoid arthritis presented to the dermatology clinic with...

Case Letter

Granular Parakeratosis

Granular parakeratosis is possibly related to a combination of topical products that potentiate irritation, rubbing, and occlusion of sweat.


Dermpath Diagnosis

Purpuric Bullae on the Lower Extremities

A 30-year-old woman with a medical history of uncontrolled type 2 diabetes mellitus and morbid obesity presented to the dermatology clinic with a...

Case Letter

Vulvar Syringoma

Ensure adequate depth of biopsy to assist in the histologic diagnosis of syringoma vs microcystic adnexal carcinoma.

Case Letter

Sweet Syndrome With Marked Eosinophilic Infiltrate

This report highlights a case of classical Sweet syndrome (SS) with a particularly dense eosinophilic infiltrate, which could be mistaken for...

Photo Challenge

Solitary Papule on the Shoulder

A 64-year-old man presented to dermatology for a full-body skin examination. Physical examination revealed an asymptomatic, 4-mm, yellowish pink...

Dermpath Diagnosis

Keratotic Papule on the Abdomen

A 59-year-old woman with a history of basal cell carcinoma, uterine and ovarian cancer, and verrucae presented with an asymptomatic 3-mm lesion on...

Photo Challenge

Pruritic Eruption With Skinfold Sparing

An 89-year-old Asian man presented with a generalized pruritic eruption of 2 months' duration. The rash started on the flanks and later spread to...

Dermpath Diagnosis

Edema Affecting the Penis and Scrotum

A 44-year-old man presented for evaluation of self-described "skin ripping" on the penis with penile and scrotal edema of 1 year's duration....