Urticaria-like follicular mucinosis responding to dapsone.

Sir, Mucin is a jelly-like amorphous mixture of glycosaminoglycans, mainly hyaluronic acid and dermatin sulphate bound to small amounts of chondroitin sulphate and heparin sulphate. Mucinous infiltration of the skin occurs in disorders in which mucin accumulates either diffusely or focally. The disorders either affect the skin only or are related to systemic disease. Follicular mucinosis can be idiopathic or lymphoma-associated. We report a rare case of urticaria-like follicular mucinosis that responded to dapsone.