Journal of neurosurgery. Case lessons · 2026
Serial vessel wall imaging reveals rupture site and treatment response in a flow-related aneurysm associated with an arteriovenous malformation: illustrative case.
СтатьяНазвание и аннотация: Перевод в очереди
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Ikedo Taichi, Morita Takaaki, Okawa Masakazu, Miki Nanako, Chihara Hideo, Ikeda Hiroyuki, Funaki Takeshi, Kikuchi Takayuki, Sakai Chiaki, Arakawa Yoshiki
Аннотация
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.
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.