Male Genital System

Carcinoma in situ: there is intense erythema of the glans penis and distal shaft. In the older literature, Bowen’s disease at this site is sometimes referred to as erythroplasia of Queyrat. Bowen disease of the penis (erythroplasia of Queyrat)


Bowen’s disease (SCC in situ): the epidermis is completely disorganized. Note the nuclear pleomorphism. Bowen disease of the penis (erythroplasia of Queyrat)