title: [A case of prostate cancer with cyst formation].
abstract: We treated a case of prostate cancer with cyst formation in an 80-year-old Japanese man presenting with constipation. Fist-sized elastic soft mass was palpable by digital rectal examination. Computed tomography and magnetic resonance imaging demonstrated a retrovesical cystic mass arisen from the prostate. Serum prostate-specific antigen (PSA) was elevated to 15.7 ng/ml. Transrectal prostate needle biopsy revealed moderately differentiated adenocarcinoma and puncture of the cyst yielded aseptic bloody fluid. With a clinical diagnosis of prostate cancer (T2b N0 M1b) with cystic formation, hormonal therapy with a luteinizing hormone releasing hormone analogue and bicalutamide significantly lowered the serum PSA level. One year later, the cyst was reduced in volume and constipation had resolved. A total of 57 cases of prostate cancer with cyst formation are reviewed.
authors.affiliation: Department of Urology, Gifu University School of Medicine.
authors.forename: Kenichiro
authors.initials: K
authors.lastname: Ishida
authors.forename: Yasuaki
authors.initials: Y
authors.lastname: Kubota
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Takada
authors.forename: Toru
authors.initials: T
authors.lastname: Yamada
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakano
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ishihara
authors.forename: Takashi
authors.initials: T
authors.lastname: Deguchi
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy / Q000473:pathology*; D000368:Aged; D000369:Aged, 80 and over; D003560:Cysts / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D017430:Prostate-Specific Antigen / Q000097:blood; D011469:Prostatic Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D011471:Prostatic Neoplasms / Q000188:drug therapy / Q000473:pathology*
chemical_list: D017430:Prostate-Specific Antigen