A 68-year-old woman developed annular and polycyclic plaques with peripheral scale, pustules and crusts on the abdomen and limbs. A biopsy revealed a subcorneal pustule typical of Sneddon-Wilkinson disease. Laboratory studies showed a benign IgG monoclonal gammapathy. Lesions cleared with oral dapsone 150 mg/d and topical corticosteroids.
A 68-year old woman developed annular and polycyclic plaques on the abdomen, and limbs. Lesions were pustules with scale and crusts. A biopsy revealed a subcorneal pustule evocative of Sneddon-Wilkinson disease. Blood tests revealed a benign IgG monoclonal gammapathy. Lesions resolved under treatment with dapsone 150 mg/d PO and topical corticosteroids.