title: [Primary localized amyloidosis of the urinary bladder: a case report].
abstract: A case of primary localized amyloidosis of the urinary bladder is reported. A 57-year-old male who complained of macrohematuria visited our hospital. Cystoscopic examination revealed a broad basic tumor from the anterior wall to the right wall. Suspecting a bladder tumor we performed a transurethral resection. However, the histopathological examination of the specimen revealed amyloid deposition and no malignant changes. Serum electrophoresis pattern was normal and urinary Bence-Jones protein was negative. Neither rectal nor gastric biopsy revealed amyloids. From these findings, we made a diagnosis of the primary localized amyloidosis of the urinary bladder. We collected 42 cases from the Japanese literature and discuss the clinical features of this disease.
authors.affiliation: Department of Urology, Ashiya Municipal Hospital.
authors.forename: N
authors.initials: N
authors.lastname: Maeda
authors.forename: S
authors.initials: S
authors.lastname: Nishizaki
mesh_terms: D000686:Amyloidosis / Q000473:pathology / Q000601:surgery*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D001745:Urinary Bladder Diseases / Q000473:pathology / Q000601:surgery*; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis