Diaper dermatitis with psoriasiform ID eruption.

Diaper dermatitis with psoriasiform ID eruption has a distinct clinical presentation. Its etiology and relationship to psoriasis remain uncertain. Previous reports have shown histologic features of subacute to chronic dermatitis. Two cases are presented in which a biopsy of secondary lesions showed features characteristic of psoriasis. It is possible that such cases represent those patients with a psoriatic diathesis.