CT scan and MRI are useful for evaluating the question of cerebral infarction which may occur as a consequence of carotid artery stenosis. Infarctions related to internal carotid artery stenosis may be deep, subcortical, or cortical. However, carotid stenosis may exist in the absence of infarction on MRI and CT. The definition of asymptomatic or symptomatic carotid artery stenosis is based upon...

References 1. Tomsick DJ, Tomsick TA: CT demonstration of spontaneous internal carotid artery dissection. J Neurosurg 1985;63:792-793 2. Panisset M, Eidelman BH: Multiple cranial neuropathy as a feature of internal carotid artery dissection. Stroke 1990; 21:141-147 3. Lieschke GJ, Davis S, Tress BM, Ebeling P: Spontaneous internal carotid artery dissection presenting as hypoglossal nerve palsy....

INTRODUCTION Bilateral carotid artery dissection following blunt trauma is a rare but potentially lethal injury if not diagnosed early and treated. CASE REPORT We report a collision patient who suffered bilateral asymptomatic carotid artery dissections. He also had multiple fractures of the pelvis and upper and lower extremities. The patient was managed acutely with aspirin. He underwent open...

Variations in the position of the bifurcation of the common carotid artery and the origin or branching pattern of the external carotid artery are well known and documented. Here, we report the trifurcation of the right common carotid artery in a male cadaver aged about 55 years. The right common carotid artery was found to divide into the external and internal carotids and the occipital artery....

The records and cerebral angiograms of 50 consecutive patients admitted to a large city hospital with a diagnosis of carotid system transient ischemic attacks were reviewed in an effort to determine the prevalence of demonstrable carotid artery disease in this population. Of these, 21 had a demonstrable abnormality in the extracranial carotid artery appropriate to their symptoms. Of the 29 with...

The management of carotid artery stenosis reduces the risk of stroke and its related deaths. Management options include risk factor modification and medical therapy, carotid endarterectomy (CEA), and carotid artery stenting (CAS). Although several randomized controlled trials (RCTs), mostly conducted in late-1980s and mid-1990s, have proved CEA to be effective in the prevention of ipsilateral i...

Splaying of carotid bifurcation on imaging, known as Lyre sign, is seen characteristically in carotid body tumors. Is positive Lyre sign always confirmatory of carotid body tumor? Here we discuss two cases of cervical sympathetic chain schwannoma. The first case presented radiologically as an enhancing lesion with splaying of external carotid artery and internal carotid artery (positive Lyre si...

Objective: Extracranial internal carotid artery aneurysms (ECAAs) are rare. We herein describe a case of overlapped stenting with two double-layer micromesh stents for giant ECAA.

The common carotid artery usually bifurcates into the internal and external carotid arteries at the level of C3-C4. Injury to common carotid artery during neck dissection is encountered rarly. Knowing the anatomical variation of common carotid like low lying bifurcation would prevent inadvertent injury especially by budding head-neck surgeons. We report a case of 46-yearold male undergoing surg...