Subcorneal pustular dermatosis associated with gammopathy IgA of unknown significance, with good response to dapsone

Case report: An 85-year-old man, with hypertension treated with enalapril presented pruritic skin lesions of 4 years of evolution. On examination, he had erythematous plaques of annular morphology and centrifugal growth. In the margins they had scaling and occasional pustules. The lesions affected the abdomen, lumbar area, armpits and groin. He had been misdiagnosed as a tinea corporis and treated with antifugal therapy during this time without response and several mycologic cultures of scales were negative.
Source: Journal of the American Academy of Dermatology - Category: Dermatology Source Type: research