Cirsoid aneurysm

Medical condition

A cirsoid aneurysm, also referred to as an arteriovenous malformation[1] is the dilation of a group of blood vessels due to congenital malformations with arterio venous (AV) shunting. "Cirsoid" means resembling a varix.[citation needed] They are most common on the head or neck.[2]

Cirsoid aneurysms appear as nodules or papules. Histologically, they are composed of both thick- and thin-walled blood vessels.[2]

## References

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1. ^ McKee's Pathology of the Skin (5 ed.). Elsevier. 2020. pp. 1698–1894.1698-1894&rft.edition=5&rft.pub=Elsevier&rft.date=2020&rfr_id=info:sid/en.wikipedia.org:Cirsoid+aneurysm" class="Z3988">
2. ^ a b Dermatopathology (2 ed.). Saunders. 2016. pp. 513–594.513-594&rft.edition=2&rft.pub=Saunders&rft.date=2016&rfr_id=info:sid/en.wikipedia.org:Cirsoid+aneurysm" class="Z3988">

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