title: [Perianal psoriasis--a reliable symptom in the differential diagnosis of psoriasis].
abstract: Psoriatic lesions of the perianal region are so frequent and characteristic that they may be used with striking accuracy for differential diagnosis of isolated lesions on the head, hands, glans or the nails.
mesh_terms: D001004:Anus Diseases / Q000175:diagnosis*; D002177:Candidiasis / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000175:diagnosis*
vernacular_title: Die perianale Psoriasis--ein verlässlicher Befund bei der Differentialdiagnose der Schuppenflechte.