External carotid blood supply to acoustic neurinomas

Abstract

✓ Two typical verified cases of acoustic neurinoma showed radiological evidence of tumor vasculature supplied from the external carotid artery. In one case there was no demonstrable supply from the vertebrobasilar system while in the other the tumor blood supply from this source was poor and incomplete. In each case the vascular blush shown in external carotid angiography conformed exactly to the size of the tumor found and removed at surgery.