Aneurysms of the extracranial portion of the internal carotid artery are not common, but certainly constitute a definite threat to life. Congenital defects, infection, atherosclerosis, local inflammation of the arterial wall, and some times trauma, are among the various causes of aneurysm formation. Symptoms vary with size and anatomical position of these aneurysms; often symptomology is delayed in onset. A case of a young female with a single isolated fusiform aneurysm at the origin of the left internal carotid artery, secondary to trauma (attempted strangulation), is herein reported. Presentation, clinical observa tions, management methods, and the relevant literature on the subject is re viewed.