ICA aneurysm

Case contributed by Assoc Prof Frank Gaillard


Sudden collapse.

Patient Data

Age: 50 years
Gender: Male

Intraparenchymal hemorrhage with lower attenuating "filling defect". Hemorrhage extends into ventricular system as well as into subarachnoid space. Minor hydrocephalus. 


EVD has been placed. CTA demonstrates a terminal ICA aneurysm. 

DSA (angiography)

Large ICA aneurysm coiled. 

Case Discussion

Initial CT demonstrates intraparenchymal, subarachnoid and intraventricular blood, with hydrocephalus

Within the hematoma, a rounded lower density area is present which is suspicious for a large aneurysm. 

CTA (not shown) confirmed the presence of an aneurysm which was further imaged with angiography. 

The aneurysm was filled with numerous coils. 

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Case information

rID: 10679
Published: 5th Sep 2010
Last edited: 13th Aug 2019
Inclusion in quiz mode: Included

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