Bladder, ureter & renal pelvis

Other nonneoplastic

Fibroepithelial polyp

Last author update: 1 September 2012
Last staff update: 15 August 2023 (update in progress)

Copyright: 2003-2023,, Inc.

PubMed Search: Fibroepithelial polyp

Monika Roychowdhury, M.D.
Page views in 2022: 4,576
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Cite this page: Roychowdhury M. Fibroepithelial polyp. website. Accessed October 2nd, 2023.
Definition / general
  • Exophytic intraluminal mass of vascular connective tissue and variable inflammatory cells covered by normal urothelium
  • Rare; usually reported in children
  • In adults, male predominance, median age 44 years, range 17-70 years
  • Usually near verumontanum or bladder neck
  • More common in proximal ureter than bladder
  • Nonneoplastic
Clinical features
  • May be incidental / asymptomatic
Case reports
  • Boys ages 2 and 5 years (Pediatr Surg Int 2008;24:613)
  • 3 year old boy with 15 cm polyp (Pediatr Dev Pathol 2003;6:179)
  • 14 year old boy (Arch Ital Urol Androl 2005;77:118)
  • Transurethral resection; don’t recur
Clinical images

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Ureteral polyp

Microscopic (histologic) description
  • Urothelial or rarely columnar epithelial lining
  • Either (a) polypoid mass with cloverleaf-like projections and florid cystitis cystica et glandularis of nonintestinal type in stalk, (b) papillary tumor composed of numerous small, rounded fibrovascular cores containing dense fibrous tissue, or (c) polypoid lesion with secondary tall, finger-like projections (Am J Surg Pathol 2005;29:460)
  • Broader stalks than papilloma; no prominent edema or inflammation
  • May have degenerative stromal atypia (Arch Pathol Lab Med 1986;110:241)
Microscopic (histologic) images

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Polyp of ureter

Differential diagnosis
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