title: [Cholesteatoma of the ureter: a case report].
abstract: A 68-year-old woman was hospitalized complaining of right flank pain. The excretory pyelogram revealed that the right kidney was hydronephrosis, and a retrograde pyelogram showed stringy filling defects in the middle portion of the right ureter. Suspecting a right ureter tumor, a right ureteronephrectomy was performed. The pathological diagnosis was ureteral cholesteatoma which is a rare condition with reports of only 9 cases in the Japanese literature. Although the possibilities of malignant change has been debatable, long term follow up would be mandatory.
authors.forename: N
authors.initials: N
authors.lastname: Yamanaka
authors.forename: J
authors.initials: J
authors.lastname: Miyazaki
authors.forename: S
authors.initials: S
authors.lastname: Okada
mesh_terms: D000368:Aged; D002781:Cholesteatoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014516:Ureteral Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014567:Urography