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Updated: Jun 10, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
A case of partially thrombosed giant basilar aneurysm successfully treated by coil embolization followed by proximal
1Department of Neurosurgery, Hirosaki University School of Medicine; Hirosaki, Japan.
Summary:
A case of unclippable partially thrombosed giant basilar artery (BA) aneurysm was treated successfully by intra-aneurysmal GDC embolization followed by proximal BA occlusion. Balloon occlusion test of the BA showed a good opacification of the aneurysm angiographically through plentiful collateral flow from anterior circulation. This combination may prevent coil compaction and will promote intra-aneurysmal thrombosis.
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