Bladder & ureters
Nonurothelial benign tumors
Hemangioma


Topic Completed: 1 February 2013

Revised: 21 June 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed Search: Bladder [title] hemangioma

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Cite this page: Tong T. Hemangioma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/bladderhemangioma.html. Accessed August 19th, 2019.
Definition / general
  • Benign vascular tumor similar to its counterparts elsewhere
Epidemiology
Sites
  • Predilection for dome, posterior wall and trigone
Clinical features
  • Generally considered a congenital anomaly, although 50% are detected in adults
  • Associated with cutaneous hemangiomas, Klippel-Trenaunay syndrome (port-wine hemangiomas, varicose veins, soft tissue and bone hemihypertrophy)
  • Painless hematuria, dysuria and abdominal pain
Case reports
Treatment
  • Biopsy with or without fulguration; very good outcome
  • Rarely partial cystectomy
Gross description
  • Sessile
  • Median 0.7 cm
Microscopic (histologic) description
  • Classified as cavernous, capillary, or arteriovenous based on conventional criteria from other sites
  • Usually cavernous type
Microscopic (histologic) images

AFIP images

Patient with Klippel-Trenaunay syndrome



Images hosted on other servers:

Cavernous hemangiomas

Capillary hemangioma of skin

Differential diagnosis
  • Angiosarcoma: anastomosing channels lined by plump hyperchromatic cells
  • Arteriovenous malformation: abrupt changes in thickness of medial and elastic layers of vessels, abnormal vascular dilation
  • Telangiectasia: chronically dilated capillaries, no actually increase in number of vessels
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