2023 Volume 32 Issue 4 Pages 254-260
Rete middle cerebral artery (MCA), a relatively rare variant, has a plexiform arterial network and stenosis or occlusion at the proximal legion. Rete MCA is also called twig-like or unfused MCA. We demonstrate three cases of rete MCA. One case presented with intracranial hemorrhage and a hematoma was removed. The other cases were incidentally noted and one of them had a plexiform arterial network at the M2 legion. Rete MCA is sometimes misdiagnosed as moyamoya disease or degenerative steno-occlusive disease. No diagnostic criteria of rete MCA have been determined, nor has the best treatment strategy been determined. We need further studies that decide treatment strategies of each case.
