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Anterior communicating artery (ACom) aneurysm

Case contributed by: Dr Mohammed Alghamdi

Patient Data:

Age: 50

Gender: Male

Race: Asian

From the case: Anterior communicating artery (ACom) aneurysm

Modality: CT

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C+ arterial phase

Male patient presented 3 weeks back with frontal lobe acute cerebral bleed with interventricular extension who under went follow up CTA which revealed lobulated Acomm(Anterior communicating artery) saccular aneurysm measuring 6.1 x 6.8 x 8.3 mm with neck measuring 3.5 mm.

Normal variant of the ACA noted which shows absence of the left A1 segment and the origin of both A2 segments from a single, unilateral right A1 segment

Another normal variant in this case is fetal origin of the posterior cerebral artery

Case Discussion:

References:

1. Dimmick SJ, Faulder KC. Normal variants of the cerebral circulation at multidetector CT angiography. Radiographics. 29 (4): 1027-43. doi:10.1148/rg.294085730 - Pubmed citation