Genital Tumors among Men with Psoriasis Exposed to Psoralens and Ultraviolet A Radiation (PUVA) and Ultraviolet B Radiation

Abstract
Squamous-cell cancer occurs only rarely on the male genitalia. In a 12.3-year prospective study of 892 men in a cohort of patients with psoriasis who had been treated with oral methoxsalen (8-methoxypsoralen) and ultraviolet A photochemotherapy (PUVA), we identified 14 patients (1.6 percent) with 30 genital neoplasms.