Image gallery: Hairy-cell leukaemia presenting with Sweet syndrome.

A 57-year-old man presented with a 1-month history of fevers, dermatitis and pancytopenia in the setting of a 14-lb weight loss, fatigue, night sweats and arthralgia. Skin examination revealed multiple erythematous papules on the (a) trunk and (b) extremities. Erythrocyte sedimentation rate and C-reactive protein were elevated (104 mm h-1 and 14.8 mg L-1 , respectively). This article is protected by copyright. All rights reserved.