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Updated: Jun 5, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Intrameatal aneurysm of the anterior inferior cerebellar artery
Donato C Zotta1, Giovanni Stati, Danilo De Paulis
1Department of Neurosurgery, San Salvatore City Hospital, via Vetoio, Coppito, L'Aquila 67100, Italy. zotta@libero.it
Abstract:
Aneurysms of the distal part of the anterior-inferior cerebellar artery (AICA) are rare, with an incidence of 0.1% to 0.5%. We report a 55-year-old woman suffering from a subarachnoid hemorrhage resulting from a ruptured intrameatal aneurysm of the AICA. A left retrosigmoid craniotomy was performed and the aneurysm was clipped without post-operative deficits. Follow-up angiography demonstrated exclusion of the aneurysm, confirming preservation of the distal AICA. We review the pertinent literature and discuss clinical presentation, radiological findings and surgical management of this patient.
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