ArticleJournal of neurosurgery. Case lessons2026
Serial vessel wall imaging reveals rupture site and treatment response in a flow-related aneurysm associated with an arteriovenous malformation: illustrative case.
Article in Journal of neurosurgery. Case lessons, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe clinical significance of wall enhancement on vessel wall imaging (VWI) in arteriovenous malformation (AVM)-associated flow-related aneurysms (FRAs) remains unclear. OBSERVATIONS: A healthy adolescent presented with intraventricular hemorrhage and acute hydrocephalus caused by rupture of a left parietal AVM. VWI revealed an FRA protruding into the lateral ventricle with strong wall enhancement and interval growth, suggesting it as the rupture site. Transarterial embolization was performed on day 12, and follow-up VWI the next day showed complete disappearance of wall enhancement. Serial MRA studies demonstrated progressive regression and eventual disappearance of the aneurysm. LESSONS: This case uniquely demonstrated rapid postoperative disappearance of aneurysmal wall enhancement and morphological regression on serial VWI. VWI may serve as a valuable tool not only for identifying rupture sites but also for monitoring temporal changes of AVM-associated aneurysms. https://thejns.org/doi/10.3171/CASE25951.
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