Imaging study reveals anterior inferior cerebellar artery aneurysms develop exclusively with meatal loop-tumor contact post-radiosurgery, highlighting an anatomical risk factor.
Anterior inferior cerebellar artery aneurysm formation after stereotactic radiosurgery for vestibular schwannoma is rare, occurring exclusively in patients with meatal loop–tumor contact at pretreatment brain MRI, suggesting an anatomic association.
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Umekawa et al. (2026) studied this question.
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