Answers are grounded in this paper and cite their sources.
Case observations reveal vessel wall imaging as a tool for identifying rupture sites in aneurysms, suggesting clinical implications.
BACKGROUND The 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
No takes yet. Share an insight, caveat, or question.
Ikedo et al. (2026) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: