Figure 3: (a) Digital subtraction angiography image depicting fenestration of MCA with corresponding. (b) Line diagram showing fenestration of proximal right MCA (M1). (c) normal fetal development of the MCA from arterial twigs arising from the ICA, distal to the ACA. MCA: Middle cerebral artery, ICA: Internal carotid artery, ACA: Anterior cerebral artery