Kaposi's sarcoma: HIV-negative man with isolated penile localization.

Kaposi's sarcoma is the malignant proliferation of the endothelial cell vessels. Its genesis is still unclear; however, it seems to be related to the herpes virus infection (HHV-8). This neoplasia usually affects the lower limbs and the affected persons are mostly from the Mediterranean region. The exclusive penile localization of the Kaposi's sarcoma in a patient with a negative HIV serologia is exceptional. Our case is of a 73-year old patient with a negative HIV serology presenting an exclusive penile localization of the Kaposi's sarcoma treated by radiotherapy.