Figure 1: (A) DWI protocol of brain MRI showed multiple border zone infarcts at the centrum semiovale of the right hemisphere (star sign). (B) Frontal view of right internal carotid artery (ICA) angiogram revealed that the stenotic part of the right MCA was characterized by a network of fine but tortuous arterial twigs (arrow). (C) The frontal branch of the STA (double arrows) was selected as the donor artery. (D) Intraoperative photo showed the completion of STA-MCA end-to-side anastomosis.