title: Polypoid and papillary cystitis mimicking a large transitional carcinoma in a patient without a history of catheterization: computed tomography and magnetic resonance findings.
abstract: The computed tomography and magnetic resonance imaging (MRI) findings of an unusual case of polypoid and papillary cystitis are described, in which the large size of the mass (5 cm) and no history of catheterization favored the diagnosis of transitional carcinoma before surgery. The MRI findings reflected the pathologic features of this cystitis, featuring edematous fibrovascular cores, which appeared as a central branching pattern of high signal intensity on T2-weighted imaging and with enhancement.
authors.affiliation: Department of Radiology, Gachon Medical School, Gil Medical Center, Incheon, Korea. sunhk@ghil.com
authors.forename: Sun Ho
authors.initials: SH
authors.lastname: Kim
authors.forename: Dal Mo
authors.initials: DM
authors.lastname: Yang
authors.forename: Na Rae
authors.initials: NR
authors.lastname: Kim
mesh_terms: D000328:Adult; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis*; D003556:Cystitis / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D004487:Edema / Q000473:pathology; D006470:Hemorrhage / Q000473:pathology; D006801:Humans; D007238:Infarction / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D011127:Polyps / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed; D001743:Urinary Bladder / Q000098:blood supply / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*