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MRI-T2-weighted image 3 months after clipping for left MCA aneurysm shows no anomalies and no dAVF (A), but 1 year later MRI-T2-weighted image (B) shows abnormal dilation of cerebral vessels representing venous congestion (arrow). Sequential change in MR angiography shows the tortuous growth of bilateral OA in 1 year (C and D). dAVF: dural arteriovenous fistula; MCA: middle cerebral artery; OA: occipital artery
Source publication
Objective: We describe a case of de novo dural arteriovenous fistula (dAVF) developed after bilateral neck clipping for middle cerebral artery (MCA) aneurysms, treated with transarterial embolization (TAE) using liquid materials.
Case Presentation: A 60-year-old man underwent neck clipping for a right ruptured MCA aneurysm, and a left unruptured MC...
Contexts in source publication
Context 1
... revealed dilation of the bilateral occipital arter- ies (OA), which became markedly so ( Fig. 1C and 1D) during the 2-year postoperative follow-up at the outpatient clinic. There was no new edematous change on any T2- weighted MR images of the brain, but a large number of flow voids had appeared, suggesting dilation of superfi- cial cerebral veins (Fig. 1A and 1B). Progressive memory disorder was observed, so cerebral angiography was ...
Context 2
... dilation of the bilateral occipital arter- ies (OA), which became markedly so ( Fig. 1C and 1D) during the 2-year postoperative follow-up at the outpatient clinic. There was no new edematous change on any T2- weighted MR images of the brain, but a large number of flow voids had appeared, suggesting dilation of superfi- cial cerebral veins (Fig. 1A and 1B). Progressive memory disorder was observed, so cerebral angiography was per- formed for detailed ...
