title: [A case of giant prostatic cystadenoma].
abstract: An 80-year-old man was admitted to our hospital with the chief complaint of urinary retention. On physical examination, a large tumor was recognized in pelvic cavity. Serum levels of prostatic acid phosphatase and gamma-seminoprotein were elevated. Anterior pelvic exenteration was performed because the tumor was huge and malignancy could not be ruled out preoperatively. The tumor weight was 660 g (11 x 8 x 7 cm) and had a multicystic structure macroscopically. Immunohistochemical study by the prostatic specific antigen stain showed positive staining in the epithelial cells of the tumor, which suggest that the tumor was of prostatic origin.
authors.affiliation: Department of Urology, Takashima Hospital.
authors.forename: J
authors.initials: J
authors.lastname: Watanabe
authors.forename: T
authors.initials: T
authors.lastname: Konishi
authors.forename: H
authors.initials: H
authors.lastname: Takeuchi
authors.forename: T
authors.initials: T
authors.lastname: Tomoyoshi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003537:Cystadenoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000601:surgery