“…The etiology of penile verrucous carcinoma is un¬ clear, but infection, chronic phimosis, irritation, trauma, and poor hygiene have all been implicated as important factors in its development.1622 Also, uncir-Accepted for publication March15, 1990. Most authors now believe that entities such as giant condyloma of Buschke and Löwenstein; epithelioma cuniculatum; oral florid papillomatosis; and pseudoepitheliomatous, micaceous, and keratotic balanitis are all clinical variants of verrucous carcinoma.8,162326 As shown in Table 2, Mohs and Sahl23 have proposed a simplified classification for verrucous carcinoma that describes the major sites of involve¬ ment: panoral, genitogluteal, and plantar.…”