Abigail L. Taub, MD; David D. Nelsen, MD; Rana Nasser, MD; Erik J. Stratman, MD
Dr. Taub is from the University of Wisconsin School of Medicine and Public Health, Madison. Drs. Nelsen and Stratman are from the Department of Dermatology, and Dr. Nasser is from the Department of Infectious Disease, all at Marshfield Clinic, Wisconsin.
North American blastomycosis should be considered in patients who have verrucous or ulcerative perianal lesions and have lived in or traveled to endemic regions, especially if they have recent or ongoing pulmonary symptoms. Potassium hydroxide preparation and fungal staining of biopsy specimens can aid in diagnosis.
The authors thank the Marshfield Clinic Research Foundation’s Office of Scientific Writing and Publication (Marshfield, Wisconsin) for editorial assistance in the preparation of this manuscript.