Aneurysms of the extracranial carotid arteries are relativeley rare in comparison with the total arterial system, but can cause death or a cerebrovascular accident. The treatment of choice is resection of the aneurysm and restoration of arterial continuity. This report describes two cases of extracranial internal carotid arterial aneurysm, which were saccular type. In both cases, the operations were performed under general anesthesia without shunt. The patients were recovered without any neurological sequelae.