Eosinophilic pustular folliculitis reminiscent of acne infantum.

Abstract

A 7-month-old boy was first observed due to asymptomatic, erythematous and pustular facial lesions persisting for four months. The family history showed hay fever in his father and a maternal aunt. The personal history was negative for atopy. The recent medical history was contributive because it highlighted a clinical course characterized by recurrent crops of pustular lesions, which lasted 7-10 days and were interspersed with periods of lesion-free days or weeks. The lesions affected mainly the face, but some lesions also involved the trunk, scrotum, feet and scalp. Physical examination showed erythematous, papulopustular lesions on the face in the absence of comedones (Fig. 1, 2), on the foot (Fig. 3) and scalp (Fig. 4). There was peripheral eosinophilia. The final diagnosis was eosinophilic pustular folliculitis.