case_images: PMC3358958_01
case_images: T1-weighted images show a mass lesion under the scalp of the left temporoparietal region
case_images: AJNS-7-39-g001.jpg
case_images: PMC3358958_01_AJNS-7-39-g001.jpg
case_images: F1
case_images: A vascular mass under the scalp in the left temporoparietal region, demonstrating high contrast, was detected on magnetic resonance imaging (MRI) [Figure 1].
case_images: Carotid angiography demonstrates large, tortuous dilated venous structures as well as large AVM
case_images: AJNS-7-39-g002.jpg
case_images: PMC3358958_01_AJNS-7-39-g002.jpg
case_images: F2
case_images: The feeding arteries were the left superficial temporal artery (STA) and the left facial artery, while the draining vein was the left external jugular vein  [Figure 2].
case_images: AVM is seen to be removed totally on the postoperative T1-weighted magnetic resonance images
case_images: AJNS-7-39-g003.jpg
case_images: PMC3358958_01_AJNS-7-39-g003.jpg
case_images: F3
case_images: Surgical excision was performed without complications, with complete excision of the AVM, including the feeding artery and draining vein [Figure 3].
case_images: Various sized vessels are seen between fat and muscle tissue (H and E x40)
case_images: AJNS-7-39-g004.jpg
case_images: PMC3358958_01_AJNS-7-39-g004.jpg
case_images: F4
case_images: Endothelial cells and perivascular cells in capillary arteries were positive with immunohistological staining for vascular endothelial growth factor (VEGF); the major feeding arteries and draining vein were VEGF-negative [Figure 4].