Subcorneal pustular dermatosis: a variant of pustular psoriasis

A patient with clinical lesions typical of subcorneal pustular dermatosis of Sneddon and Wilkinson also had stigmata of psoriasis, namely psoriatic plaques, pitting of nails, and psoriatic arthritis. Histologic studies of the pustular lesions were consonant with pustular psoriasis. Correlating the phenomena of previously reported cases of subcorneal pustular dermatosis with those of our patient, we conclude that subcorneal pustular dermatosis of Sneddon and Wilkinson is but another variant of psoriasis.