Ruptured distal accessory anterior cerebral artery aneurysm: a case report and literature review

fornix.If this MACC supplies one or more of the usual cortical branches of ACA, Baptista classified this anatomical variant as accessory ACA (accACA) (Figure 1) (1).The accACA is an anatomical variation reported to occur in 3.3 to 15% of individuals (1,2,6,11,12).Furthermore, the aneurysms of this anatomical variant are less common, and few case reports were reported in the literature.Most of the distal accACA aneurysm cases in the literature are at the A4 and A5 segments and distal accACA aneurysms are parallel to dACA aneurysms regarding tendency to rupture, small size and good outcome after direct surgery (4,5,7-10,14).We, therefore, present our case of a distal accACA aneurysm at A3 segment and literature review in this report. █ CASE REPORTA 60-year-old woman presented with sudden onset severe headaches and nausea.She was a non-smoker with a