Aneurysm Arising from the Distal Anterior Inferior Cerebellar Artery

Creators Takasago Teiichi

Creators Yamashita Tetuo

Creators Fujisawa Hirosuke

Creators Ito Haruhide

Creators Iwamoto Fuminori

An aneurysm arising from the distal anterior inferior cerebellar artery is reported. The patient, a 66-year-old woman, was admitted to our hospital with vertigo, headache, nausea and vomiting. CT scan showed a high-density area in the right ambient cistern, quadrigeminal cistern and cerebellopotine angle cistern. A right vertebral angiogram revealed a saccular aneurysm at the distal portion of the right anterior inferior cerebellar artery. Surgery was performed 4 days after admission. The neck of the aneurysm was clipped via the suboccipital approach. Normal pressure hydrocephalus ossurred during the postoperative course. Ventriculoperitoneal shunt was performed 4 weeks after the osccurrence of subarachnoidal hemorrhage. Clinical features of aneurysms arising from the distal anterior inferior cerebellar artery are reviewed from the previous reports and a mechanism of formation and treatment modalities of the aneurysm are discussed in this study.

[ISSN]0513-1812

[NCID]AA00594272