Upper urinary tract fibroepithelial polyp

Upper urinary tract fibroepithelial polyp is a rare benign pathology of the upper urinary tract that can mimic malignancy.

Ureteral fibroepithelial polyp redirects here.

General

• Presentation may include: hematuria, flank pain, urinary frequency.

Gross

• Classically proximal ureter.

Microscopic

Features:

• Polypoid lesion (epithelium on three sides in plane-of-section) covered unremarkable urothelium.

Sign out

A. Right Ureter, Lesion, Resection:
	- Benign urothelial fibroepithelial polyp with focal hemosiderin.
	- NEGATIVE for malignancy.

Micro

The sections shows a polypoid lesion covered by a thin urothelium. The urothelium has an unremarkable appearance; all of the following are absent: anisonucleosis, apparent proliferation, lack of maturation. The core of the lesion is fibrous and edematous. Hemosiderin and siderophages are present.

See also

• Fibroepithelial polyp.
• Urothelial carcinoma.