De Novo Arteriovenous Malformation after Aneurysm Clipping

Satoka Shidoh; Masahito Kobayashi; Kazunori Akaji; Tadashige Kano; Yoshio Tanizaki; Ban Mihara

doi:10.2176/nmccrj.cr.2016-0272

Case Reports

De Novo Arteriovenous Malformation after Aneurysm Clipping

Satoka Shidoh, Masahito Kobayashi, Kazunori Akaji, Tadashige Kano, Yoshio Tanizaki, Ban Mihara

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Keywords: de novo arteriovenous malformation, post-craniotomy, pathophysiological response, vasculogenesis, angiogenesis

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2017 Volume 4 Issue 3 Pages 89-92

DOI https://doi.org/10.2176/nmccrj.cr.2016-0272

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Abstract

We report a 73-year-old woman with de novo arteriovenous malformations (AVMs) that developed in the ipsilateral parietal lobe after craniotomy and aneurysm clipping. While intracerebral AVMs are considered to be congenital lesions, there have been several reported cases of acquired AVM arising after ischemic or traumatic episodes. We summarize previously reported cases of such acquired ‘de novo’ AVMs with a discussion of some pathophysiological responses or factors suggested to promote their development.

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