A false traumatic giant aneurysm of the supraclinoid carotid artery. A case report and review of the literature

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Abstract
A patient presented with left hemiparesis and facial palsy developed 20 days after a traffic accident. A computerized tomography (CT) scan revealed right suprasellar mass lesion. A repeated CT scan revealed a growing mass. Carotid angiogram demonstrated a giant aneurysm of the supraclinoid internal carotid artery (ICA) with no distal filling. Formation of the aneurysm was thought to be due to an overstretching or torsion of the artery or tearing of the ICA by nearby prominent bony structure since no basal skull fracture was detected in the plain skull film or CT scans. The aneurysm was treated by intracranial trapping of the ICA. We present this patient's findings and review previously reported cases in the literature.

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