[Erosive pustulosis of the scalp. A spongiform pustular dermatosis?].

A case of erosive pustular dermatosis of the scalp is reported. The lesions were eroded with crusting and pustule formation and were localised on the scalp. Investigations for infection, autoimmunity, vascular or tumoral aetiology were negative. Skin biopsy revealed non specific inflammation as usually, but also showed spongiform pustule formations which had not previously been described. Topical corticosteroid therapy dramatically improved the lesions. The pathogenesis of this disease is discussed.