Combination of olfactory course anterior cerebral artery and accessory middle cerebral artery (MCA) with occluded in situ MCA and related moyamoya phenomenon.
We describe a rare case of congenital persistence of a primitive olfactory anterior cerebral artery in association with an ipsilateral accessory middle cerebral artery. The normally and anatomically positioned, or in situ, middle cerebral artery was occluded. This, along with a well-developed anastomotic network of lenticulostriate artery domains and leptomeningeal collaterals suggested a moyamoya phenomenon. To our knowledge, ours is the first report of this anatomic variant and the altered conventional vascular territories of supply.
Lin
Wei-Che
WC
Department of Diagnostic Radiology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, 123 Ta-Pei Road, Naio-Sung County, Kaohsiung, Taiwan.
Hsu
Shih-Wei
SW
Kuo
Yeh-Lin
YL
Feekes
Joel A
JA
Wang
Hung-Chen
HC
D002536:Cerebral Arteries / Q000002:abnormalities*; D005260:Female; D006801:Humans; D020244:Infarction, Middle Cerebral Artery / Q000473:pathology*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009072:Moyamoya Disease / Q000473:pathology*