継時的に観察しえた外傷性脳動脈瘤の治験例

Traumatic Aneurysm of Intracranial Portion of the Internal Carotid Artery:Report of a Case in which the Development of Aneurysm was documented by Several Carotid Angiographies

Ⅰ．はじめに

　外傷性脳動脈瘤は比較的まれであり，その発生過程を継時的に観察しえた報告は非常に少ない^12，13）．ここに脳血管写上，動脈瘤発生過程を継時的に追跡観察しえた治験例を報告し，あわせてその発生機序につき文献的考察を加える．

There have rarely been reported about the developmental course of a traumatic cerebral aneurysm. This paper presents a case of traumatic true aneurysm of which development was documented by several angiographies taken after head injury.

On September 3, 1973 a 15-year-old boy was hit on the left jaw with immediate loss of consciousness followed by generalized convulsions, and was admitted to the hospital 5 hours later, when he was delirious with mild nuchal rigidity. The first carotid angiograms showed an irregular stenosis of the supraclinoid segment of the left internal carotid artery.