Localized amyloidosis of the ureter: a case report

J Med Case Rep. 2023 Oct 8;17(1):443. doi: 10.1186/s13256-023-04138-y.

Abstract

Background: Amyloidosis is a collection of disorders characterized by the extracellular deposition of amyloid, a specialized fibrous protein, in diverse tissues, leading to functional impairments.

Case presentation: A 70-year old Asian-Japanese female was referred to our department for further examination of her left hydronephrosis come from lower ureteral obstruction. Contrast enhanced CT and retrograde pyelo-nephrography revealed left ureteral tumor. Though ureteroscropic biopsy did not show malignant pathological findings, ureteroscopic image suspected malignant disease, thus nephroureterectomy was performed. Pathological findings revealed localized ureteral amyloidosis. Whole body examination including gastro endoscopy and cardio ultrasonography could not reveal amyloidosis except ureter. She was free from recurrence 9 months postoperatively.

Conclusion: We herein report a rare case of localized ureteral amyloidosis.

Keywords: Amyloidosis; Localized amyloidosis; Ureteral tumor.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Amyloidosis* / diagnostic imaging
  • Amyloidosis* / surgery
  • Female
  • Humans
  • Ureter* / diagnostic imaging
  • Ureter* / pathology
  • Ureter* / surgery
  • Ureteral Diseases* / complications
  • Ureteral Diseases* / diagnostic imaging
  • Ureteral Diseases* / surgery
  • Ureteral Neoplasms* / pathology
  • Ureteral Obstruction* / diagnostic imaging
  • Ureteral Obstruction* / etiology
  • Ureteral Obstruction* / surgery