Surgical field after removal of the arteriovenous malformation showing the clipped, arterialized drainage vein (blue arrow) and the clipped final branches of the telovelotonsillar segment of the posterior inferior cerebellar artery (PICA; red arrow). The PICA is depicted transparently (green arrow). The white arrow shows a cortical segment of the PICA. See the article by Dellaretti et al. (V16).