Prostatic adenocarcinoma metastasizing to the testis: a study of two cases.

Prostatic carcinoma metastasizing to the testis is an extremely rare occurr ence. In this study, two new cases have been reported of unilateral testicu lar metastases from an adenocarcinoma of the prostate. Unlike primary tumor s of the testis, this type of tumor develops later in life (between 50 and 60 years of age), and is in most instances unilateral. it is generally disc overed accidentally during orchiectomy or autopsy. It is not always easy to establish a morphological diagnosis, as the macroscopic appearance of the tumor may be normal. However, microscopic investigation reveals the presenc e of neoplasms of the testis. (C) 2000 Editions scientifiques et medicales Elsevier SAS.