Giant multilocular prostatic cystadenoma: a rare clinical entity and review of the literature.

Giant multilocular prostatic cystadenoma is a pathologically benign entity. To our knowledge only 3 cases have been reported in the literature, of which 2 were treated by means of pelvic exenteration. These lesions can occur in men of various ages, arise from the prostate and grow to massive proportions. Histologically the tumor is comprised of benign cysts lined with cuboidal and columnar epithelium. The lesions do not invade contiguous structures but they can be adherent to viscera in their proximity. Giant multilocular prostatic cystadenoma as demonstrated by our case is a benign entity that can be definitively treated by carefully planned complete surgical excision.