Subarachoid hemorrhage: posterior inferior cerebellar artery aneurysm

Case contributed by Frank Gaillard
Diagnosis certain

Presentation

Headache.

Patient Data

Age: 55 years
Gender: Female

Extensive subarachnoid blood is demonstrated within the suprasellar, ambient, and quadrigeminal plate cisterns and the sylvian fissures bilaterally. Large volume of blood also fills prepontine cistern and extends through foramen magnum. Smaller volume of subarachnoid blood is identified within the cerebral sulci bilaterally, predominantly in the inferior frontal regions.

A complex PICA aneurysm is noted with associated PICA stenosis is noted on the right. No other aneurysm is identified. 

Case Discussion

This patient went on to have endovascular treatment of the aneurysm, and has made a good recovery.

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