Internal carotid artery agenesia: an unusual variant

A Penetrating Pellet Jeopardizing Internal Carotid Artery

Aplasia of the Internal Carotid Artery with Dandy-Walker Variant.

Dear Editor, A 28-year-old woman presented with a 2-year history of headache, and magnetic resonance imaging (MRI) led to a diagnosis of suspected intracranial malformation. She had been in good health and had developed normally prior to developing the symptom. A neurological examination on admission revealed no anomaly. Brain MRI revealed agenesis of the inferior part of cerebellar vermis and ...

Combined endarterectomy of the internal carotid artery and persistent hypoglossal artery: an unusual case of carotid revascularization.

Persistence of the hypoglossal artery is an unusual congenital abnormality of the carotid arterial system, and the simultaneous occurrence of atheromatous disease in the internal carotid artery and persistent hypoglossal artery is even more uncommon. Carotid surgery in this situation is challenging, and the surgeon must be aware of potential inherent pitfalls. A 74-year-old woman with asymptoma...

[Internal carotid artery revascularization].

Carotid endarterectomy remains the standard revascularization technique for the prevention of ischemic stroke resulting from severe carotid stenosis. Surgery is highly beneficial in patients with a symptomatic stenosis of 70% or greater that is not a total or near-total occlusion. The benefit becomes more diluted in patients with a symptomatic 50-69% stenosis, and surgery has no effect, or even...

Pseudofenestration of the cervical internal carotid artery: a pathologic process that simulates an anatomic variant.

Fenestration of the cervical segment of the internal carotid artery (ICA) is considered an extremely rare anatomic variant, with, to the best of our knowledge, only four cases reported in the literature. We report six angiographic observations of apparent fenestration of the cervical ICA, which we believe are secondary to arterial dissection. We discuss the angiographic appearance of these pseu...