Taylor G B, McNeal J E, Cohen R J
Department of Pathology, University of Auckland, New Zealand.
Pathology. 1998 May;30(2):218-21. doi: 10.1080/00313029800169306.
Penile metastases from prostate cancer are rare and are usually a manifestation of wide-spread cancer dissemination. Isolated urethral metastases form a small fraction of these cases, have a longer survival rate and may represent spread by implantation following instrumentation. We report a case of prostatic carcinoma presenting with an isolated metastasis to the penile urethra after catheterisation and transurethral prostatectomy. The primary tumor had a prominent intraductal component whose architectural features were mimicked in the metastasis. The possible mechanisms of spread and the diverse appearances of cancer associated with an intraductal component are discussed.
