Abstract
We report a case of large cavernous aneurysm associated with persistent primitive trigeminal artery (PPTA). Thrombosis of the aneurysm was obtained only by occlusion of the PPTA. Aneurysms associated with PPTA have not previously been treated only by the occlusion of PPTA with GDC, and this report presents the first such intervention. A radiological follow-up study with MRI and angiography demonstrated marked shrinkage of the thrombosed aneurysm 17 months later, although clinical symptoms were not improved. From our experience, we suggest that the occlusion of the P PTA can be the first step in the therapeutic protocol for aneurysms associated with PPTA.
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