Retrovesical Multilocular Prostatic Cystadenoma Mimicking a Pelvic Cavity Tumor

ABSTRACT

We report the case of a 58-year-old man with a multilocular prostatic cystadenoma in the retrovesical space that mimicked a pelvic cavity tumor. Multilocular prostatic cystadenoma is a rare form of benign prostatic hyperplasia that originates from the prostate with extensive spread into the pelvis. Histologically, the tumor consisted of glands and cysts lined by prostatic-type epithelium lying in a hypocellular fibrous stroma. For a cystic tumor adjacent to the urinary tract, ectopic prostatic cystadenoma is needed to be considered in the differential diagnosis of pelvic cavity tumors.