Metastasis to the penis from rectal adenocarcinoma.

Penile cancer is a serious but largely under-represented phenomenon in many of the large national cancer databases. Even more rare is the presentation of solitary metastasis to the penis from a gastrointestinal primary site. This case describes one such case of metastasis of rectal adenocarcinoma and details the patient's treatment modalities. Ultimately, although the precise etiology of this particular manifestation is not well understood, the prognosis is poor in the small group that it affects. No individual treatment has been proven superior with regard to long term survival.