Subcorneal pustular dermatosis and mycoplasma pneumoniae respiratory infection.

Sir, Subcorneal pustular dermatosis (SPD) is an uncommon, chronic/recurrent, pustular eruption characterized by subcorneal sterile pustules involving mainly the abdomen and the large folds. Originally described in 1956 by Sneddon & Wilkinson (1), the condition can be ascribed to the complex group of neutrophilic dermatoses (2). The pathophysiology underlying SPD is presently unknown, but the disease has frequently been described in association with systemic disorders, i.e. myeloproliferative disorders, inflammatory bowel diseases and rheumatoid arthritis (3). We report a case of SPD possibly triggered by a Mycoplasma (M.) pneumoniae respiratory infection.