alexa Multilocular cystadenoma and cystadenocarcinoma of the prostate.
Surgery

Surgery

Medical & Surgical Urology

Author(s): Tuziak T, Spiess PE, Abrahams NA, Wrona A, Tu SM

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BACKGROUND: Multicystic prostatic tumors are rare, with only a few reported cases of prostatic cystadenoma and cystadenocarcinoma in the scientific literature.

METHODS: A retrospective review of our tumor registry over the last 25 years identified 2 rare cystic tumors of the prostate: 1 multilocular cystadenoma and 1 multilocular cystadenocarcinoma.

RESULTS: The first case illustrates the clinical and pathologic features of prostatic multilocular cystadenoma. A 42-year-old man presented with a 16-cm suprapubic mass causing displacement of adjacent visceral organs. Pathologic examination after prostatectomy confirmed it to be a multilocular cystadenoma of the prostate. The patient's postoperative course was uneventful, and his serum prostate-specific antigen level remained at < or =0.04 ng/ml throughout the course of his disease. In the second case, we present an 80-year-old male presenting with a 12-cm cystic mass of the prostate. His serum prostate-specific antigen level remained at > or =9.0 ng/ml throughout the course of his disease. The tumor had an aggressive local growth pattern, with invasion into perirectal adipose tissue. This patient underwent a pelvic exenteration, followed by adjuvant systemic chemotherapy and complete androgen blockade. Despite aggressive treatment, he had 3 recurrences over 4 months but remains alive with disease at 23-month follow-up.

CONCLUSIONS: Cystadenocarcinoma of the prostate is locally aggressive and should be included in the differential diagnosis of cystic lesions of the prostate.

This article was published in Urol Oncol and referenced in Medical & Surgical Urology

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