Expected headings
"Epidemiology"
"Embryology"
"Accessory MCA may arise from either the proximal or distal portion of the A1 segment of the ACA. There are classification systems (Teal and Manelfe) which reflect this."
"There is an association between MCA variants and intracranial aneurysms. It is important to accurately document MCA anomalies as they have implications for operative or endovascular management."