Carotid-Choroidal Aneurysms

Abstract

T IS not commonly recognized that aneurysms may arise from the carotid artery at or adjacent to the origin of the choroidal artery, well separated from the origin of the posterior communicating artery (Fig. 1). This intimate relationship to the choroidal artery has surgical significance, for inadvertent injury to this vessel may have disastrous consequences. It has been shown that, in patients with Parkinson's disease, deliberate ligation of the choroidal artery was followed frequently by stupor and in 20% of the cases by hemiplegia or death? Carotidchoroidal aneurysms present symptoms in much the same fashion as those at the carotid-communicating junction, even to direct involvement of the oculomotor nerve.