術後の脳血管撮影で消失後に再発した脳動静脈奇形の2症例

Recurrence of AVM after Disappearing on Postoperative Angiography: Report of two cases

I．はじめに

　脳動静脈奇形（以下AVMと略）の自然経過において，AVMのnidusの増大が起こることはよく知られた事実である^3,5,12,13）．しかし術後の脳血管撮影でいったんAVMが消失し，数年後に再発した症例の報告は極めて少なく，われわれが検索し得た限りでは2症例を認めるにすぎない^9）．われわれは，このような2症例を経験したので文献的考察を加え報告する．

We reported two cases of recurrent arteriovenous malformation (AVM), which had been operated on be-fore, and these AVMs disappeared on postoperative an-giography.

The first case was a 13-year-old boy who had suf-fered from intracerebral hematoma at the age of nine years. The first angiography showed AVM located in the left central region, fed by peripheral branches of the anterior and middle cerebral arteries. Sixteen days after the onset, removal of the AVM was carried out. Postoperative course was uneventful and angiography showed that the AVM had disappeared.