title: Low-grade mucinous cystic tumor mimicking urinary bladder tumor: imaging-pathologic correlation.
abstract: Mucin-producing cystitis glandularis is a rare proliferative and metaplastic change of the bladder mucosa that produces large amounts of mucus, thus taking a pseudotumoral pattern and resulting in urinary tract obstruction. We report a case of florid mucin-producing cystitis glandularis mimicking bladder carcinoma in a 77-year-old man that was documented by computed tomography and magnetic resonance imaging. Computed tomography showed diffuse, circumferential, irregular, and lobulated thickening of the bladder wall suggestive of urinary bladder carcinoma. Magnetic resonance imaging showed findings consistent with mucinous content and suggested the correct diagnosis preoperatively.
authors.affiliation: Department of Abdominal Imaging, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France. anthony.dohan@lrb.aphp.fr
authors.forename: Anthony
authors.initials: A
authors.lastname: Dohan
authors.forename: Sophie
authors.initials: S
authors.lastname: Ferlicot
authors.forename: Thomas
authors.initials: T
authors.lastname: Bessède
authors.forename: Philippe
authors.initials: P
authors.lastname: Soyer
authors.forename: Laurence
authors.initials: L
authors.lastname: Rocher
mesh_terms: D000368:Aged; D015653:Cystectomy; D003556:Cystitis / Q000175:diagnosis* / Q000378:metabolism / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009093:Mucus / Q000378:metabolism*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*; D019459:Urothelium / Q000378:metabolism / Q000473:pathology