外傷性前大脳動脈瘤—自験例4例を含む48例の検討

Traumatic Anterior Cerebral Artery Aneurysms: Experience of 4 cases and review of the literature

I．はじめに

　外傷性脳動脈瘤は稀ではあるが多くの報告があり，Fox^12）（1983）は1979年までに232例の文献的集計を報告している．われわれは最近4例の外傷性前大脳動脈瘤を経験したので本症の文献的考察を行い，特にその臨床像とCT所見を検討し，診断と治療についても若干の考察を加える．

Five cases of traumatic anterior cerebral artery aneurysms are reported with special emphasis on the initial CT findings of these cases. One case was already reported by Endo (1974).

The cases are three in children and two in adults, male four cases and female one case. Four cases had closed head injury, one open. Consciousness level on admission were diversely from clear to semicomatose. Three cases experienced rupture of aneurysms. Time of diagnosis from trauma was from two days to 34 days.