title: [Primary malignant lymphoma of the bladder: a case report].
abstract: An 86-year-old woman was admitted to our hospital with genitourinary bleeding. Abdominal computerized tomography demonstrated a low density mass on the posterior wall of the bladder. Cystoscopy revealed a nonpapillary bladder tumor. A transurethral cold cup biopsy showed lymphocytic infiltration with no malignant cells. She died 2 years after the initial presentation and autopsy revealed malignant lymphoma, diffuse B cell type, small cell type. A cold cup biopsy of the bladder mucosa sometimes fails to detect primary malignant lymphoma of the bladder because of its submucosal location.
authors.affiliation: Department of Urology, Kenwakai Ohtemachi Hospital.
authors.forename: N
authors.initials: N
authors.lastname: Oyama
authors.forename: H
authors.initials: H
authors.lastname: Ikeda
authors.forename: Y
authors.initials: Y
authors.lastname: Shimizu
authors.forename: H
authors.initials: H
authors.lastname: Tsuka
authors.forename: K
authors.initials: K
authors.lastname: Okada
mesh_terms: D000230:Adenocarcinoma; D000368:Aged; D000369:Aged, 80 and over; D002291:Carcinoma, Papillary; D005260:Female; D005706:Gallbladder Neoplasms; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000473:pathology*; D016393:Lymphoma, B-Cell / Q000473:pathology*; D009378:Neoplasms, Multiple Primary; D013964:Thyroid Neoplasms; D001749:Urinary Bladder Neoplasms / Q000473:pathology*