Study index: 96-21 Vendor Algotec Modality CT Examination CT angiogram (Brain) History 33-year-old male with headaches. Findings There is a hypervascular mass in the superior aspect of the left parietal cortex. Multiple dominant draining veins are present. The pattern suggests a cerebral arteriovenous malformation. There is no evidence of focal brain edema or hemorrhage. Left parietal cortex arteriovenous malformation.