Tinea versicolor mimicking pityriasis rubra pilaris.
Tinea versicolor is a common noninvasive cutaneous fungal disease. We recount a case of tinea versicolor that mimicked type I (classic adult) pityriasis rubra pilaris. A 54-year-old white man reported a 20-year history of a recurrent pruritic eruption that had marginally improved with use of selenium sulfide shampoo and treatment with oral antihistamines. Results of a skin examination revealed erythematous plaques; islands of spared skin; and follicular erythematous keratotic papules on the trunk, shoulders, and upper arms. A lesion was scraped to obtain skin scales for potassium hydroxide staining. Examination of the stained samples revealed the characteristic "spaghetti and meatballs," confirming the diagnosis.
Department of Surgery, Wilford Hall Medical Center, Lackland Air Force Base, San Antonio, Texas, USA.
Matthew J
MJ
Darling
Matthew C
MC
Lambiase
R John
RJ
Young
D000935:Antifungal Agents / Q000627:therapeutic use; D003937:Diagnosis, Differential; D006801:Humans; D006878:Hydroxides; D017964:Itraconazole / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010916:Pityriasis Rubra Pilaris / Q000175:diagnosis*; D017680:Potassium Compounds; D013194:Staining and Labeling; D014010:Tinea Versicolor / Q000175:diagnosis* / Q000188:drug therapy
D000935:Antifungal Agents; D006878:Hydroxides; D017680:Potassium Compounds; D017964:Itraconazole; C029943:potassium hydroxide