title: Clear cell adenocarcinoma of the urinary bladder within a diverticulum.
abstract: A rare case of clear cell adenocarcinoma within a bladder diverticulum is presented. A 69-year-old man presented to our institution with gross hematuria. Workup, including computed tomography and cystoscopy, revealed a papillary bladder mass within a bladder diverticulum near the right ureteral orifice. Biopsy of the tumor was performed, and the pathologic examination revealed clear cell adenocarcinoma. He underwent bladder diverticulectomy and remained disease free at 1 year of follow-up. The clinicopathologic characteristics of this entity compared with its most difficult pathologic differential diagnosis, nephrogenic adenoma, are reviewed.
authors.affiliation: Department of Urology, Lahey Clinic, Burlington, Massachusetts, USA
authors.forename: Alireza
authors.initials: A
authors.lastname: Moinzadeh
authors.forename: Jerilyn
authors.initials: J
authors.lastname: Latini
authors.forename: Karim J
authors.initials: KJ
authors.lastname: Hamawy
mesh_terms: D018262:Adenocarcinoma, Clear Cell / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D000236:Adenoma / Q000175:diagnosis; D000368:Aged; D003937:Diagnosis, Differential; D004240:Diverticulum / Q000150:complications*; D006801:Humans; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive; D008297:Male; D016609:Neoplasms, Second Primary / Q000473:pathology; D001745:Urinary Bladder Diseases / Q000150:complications*; D001749:Urinary Bladder Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology