Arteriovenous Hemangioma (Malformation)



Arteriovenous Hemangioma (Malformation)


Steven D. Billings, MD





Key Facts


Terminology



  • Acral arteriovenous tumor


  • Cirsoid aneurysm


  • Benign vascular tumor composed of thick- and thin-walled blood vessels


Microscopic Pathology



  • Circumscribed tumor in dermis


  • Vessels closely aggregated together


  • Ectatic thin- and thick-walled blood vessels


  • Thicker blood vessels have muscular walls resembling arteries


Top Differential Diagnoses



  • Deep arteriovenous malformation


  • Capillary hemangioma


  • Cavernous hemangioma


  • Venous hemangioma


  • Venous lake


  • Angioleiomyoma







Arteriovenous hemangioma is composed of a circumscribed proliferation of thick-walled muscular vessels that resemble arteries image and thin-walled ectatic veins image.






This higher power image of arteriovenous hemangioma demonstrates the ectatic thin-walled veins image and the thicker walled vessels resembling arteries image. The vessels have flattened endothelium.


TERMINOLOGY


Synonyms



  • Cirsoid aneurysm


  • Cirsoid hemangioma


  • Acral arteriovenous tumor


Definitions



  • Benign vascular tumor composed of thick- and thin-walled blood vessels

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Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Arteriovenous Hemangioma (Malformation)

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