Four cases of metastases to the penis and a review of the literature.

Penile metastases are rare and usually are secondary to other genitourinary primaries. Approximately 200 cases have been reported. Survival for more than 1 year is unusual, and multiple metastases have been present in all autopsied cases. Occasional survival longer than 5 years has occurred with surgical excision, suggesting the possibility of cure for those patients in whom control of the primary has been achieved and who show no other clinical metastatic lesions.