Disease concomitance in psoriasis: a clinical study of 61 cases.

Sixty-one patients with psoriasis were studied for concomitant diseases and compared with 61 age and sex-matched controls. Concomitant cutaneous diseases most often seen with psoriasis were lichen simplex chronicus (16.3%), verruca vulgaris (9.8%) and me Iasina (4.9%). Of the systemic disorders, diabetes showed the highest frequency (13.1%) followed by hypertension (8.1%). Two patients had HIV infection (3.2%). Both the patients had severe and atypical lesions.