頭蓋内外の動脈をFeederとした陳旧性外傷性AVFの1例

Traumatic Arteriovenous Fistula with Feeders of Scalp, Dura Mater and Pia: Case report

I．はじめに

　外傷性の硬膜動静脈痩（dural AVF）は，ほとんどは硬膜動脈のみを流入血管とするものである．われわれは最近，頭皮，硬膜，皮質の各動脈に栄養され，上矢状静脈洞およびTrolard's veinに流出した極めて稀な症候性外傷性硬膜動静脈痩の1例を経験したので報告する．

A very rare case of 41-year-old male with symptoma-tic dural arteriovenous fistula which was detected after 22 years from receiving head injury is reported. This AVF had arterial blood supply of scalp, dural and pial origins. In the literature, only two similar cases have so far been reported. The draining veins were the su-perior sagittal sinus and the vein of Trolard, and a large vascular sac was seen in the pial vein.