PROSTATE-CANCER METASTATIC ONLY TO THE PENIS

Prostate cancer metastatic to the penis is rare. We describe a patient who had a painful nodule in the corpora cavernosa during adjuvant rad iotherapy after radical prostatectomy for prostate cancer. Biopsy of t he nodule revealed a poorly differentiated adenocarcinoma. Immunohisto chemical staining for prostate-specific antigen confirmed a prostatic origin for the neoplasm. The lesion to the penis was treated with radi ation therapy in conjunction with androgen deprivation therapy, The pe nile pain completely resolved, and the patient remains alive, 30 month s after initiation of therapy.