Figure 2. Conventional catheter angiogram (A) with the catheter tip within the posterior auricular branch (arrow) of the left external carotid artery. There is opacification of the dilated vessels and intranidal aneurysm (arrowhead) within the AVM. The post-embolization angiogram (B) shows successful embolization of the AVM with a combination of coils (short arrows) and diluted mixture of (25%) Histoacryl in Ethiodol. There is a marked decrease in vascularity of the AVM and occlusion of the intranidal aneurysm.