Subarachnoid hemorrhage due to ruptured dissecting duplicated superior cerebellar artery aneurysm treated by endovascular embolization: a case report

Abstract

The authors report a rare case of ruptured dissecting aneurysm of duplicated superior cerebella artery (SCA). A 72-year-old female presented with symptoms of sudden dysarthria, right abducens paralysis, left horizontal nystagmus and left hemiparesis. CT revealed the subarachnoid hemorrhage extending from the cerebellopontine angle to the right sylvian fissure. An angiogram showed a fusiform dilatation in one of the cerebellar mesencephalic segment of the duplicated right SCA. Endovascular embolization of the aneurysm was performed with no major complications. Treatment of ruptured dissecting aneurysm of SCA was not well determined. Coil embolization proved to be a safe and effective treatment of ruptured dissecting aneurysm of the duplicated SCA.