title: BCG-induced granulomatous prostatitis: a comparative ultrasound and pathologic study.
abstract: We analyzed the ultrasound findings and the information obtained from serial whole-mount cross-section histologic examination of the prostates from 6 patients with bacillus Calmette-Guérin (BCG)-induced granulomatous prostatitis. Similarities to prostate cancer included a hypoechoic pattern on ultrasound, multifocality, and a propensity for a peripheral zone location. BCG-induced granulomatous prostatitis cannot be distinguished from cancer by ultrasonography. We suggest performing an ultrasound examination prior to starting BCG immunotherapy as a baseline for future reference to aid in the clinical diagnosis of BCG-induced granulomatous prostatitis.
authors.affiliation: Department of Urology, University of Texas M.D. Anderson Cancer Center, Houston.
authors.forename: H
authors.initials: H
authors.lastname: Miyashita
authors.forename: P
authors.initials: P
authors.lastname: Troncoso
authors.forename: R J
authors.initials: RJ
authors.lastname: Babaian
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology; D000328:Adult; D000368:Aged; D001500:BCG Vaccine / Q000009:adverse effects*; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D006099:Granuloma / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010173:Palpation; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D011472:Prostatitis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology*; D014463:Ultrasonography; D001749:Urinary Bladder Neoplasms / Q000628:therapy
chemical_list: D001500:BCG Vaccine