PURPOSE To report a clinical case of optic nerve compression by supraclinoidal internal carotid artery associated with optociliary shunt vessels. METHODS A 78-year-old woman with the clinical triad of left visual loss, ipsilateral optic disc pallor, and retinochoroidal (optociliary) shunt vessels is reported. She complained of loss of vision in the left eye of 2 years'' duration. RESULTS A ...

A 41-year-old man experienced intense headache and neck pain, bruits, and a complete unilateral cranial nerve palsy IX-XII (Collet-Sicard syndrome) after a trivial back trauma. Magnetic resonance imaging and angiography demonstrated features of bilateral internal carotid artery dissection with aneurysm formation at the base of the skull compressing the nerves at the level of the jugular foramen...

1024x768 normal 0 false false false en-us x-none ar-sa background and objective: numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. one physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. in this study, we can predict hem...

Carotid-cavernous fistulas (CCF) are abnormal communications between the internal carotid artery and the cavernous sinus. Traumatic carotid-cavernous fistulae are rare potential complications of craniofacial trauma. Typical findings of CCF are proptosis, chemosis, headache, oculomotor or abducens nerve palsy, trigeminal pain and pulsating bruit over the temporal skull and the bulb. CCF are repo...

A 24-year-old man was admitted after sustaining a single gunshot wound to the neck with an expanding hematoma on the left. Computed tomography angiography demonstrated bilateral internal carotid artery pseudoaneurysms, with disruption of flow on the left and a carotid-jugular fistula on the right. At operation, transection of the left internal carotid artery necessitated ligation of the artery....

Most intraorbital structures are supplied by branches of the ophthalmic artery (OA) which is the first branch of the internal carotid artery after it exits from the cavernous sinus. OA, proceeds in optic canal embedded in dura mater of the optic nerve [1]. Within OA’s branches, there are pial vessels and central retinal artery, a main intraneural branch. In addition to these, there is a strong ...

A 59-year-old woman presented with a pulsatile lump in the neck after carotid artery stenting for symptomatic focal stenosis (50–69%) of the left carotid bulb (Fig. 1A). Cervical duplex ultrasonography and computed tomography-angiography revealed a large lobulated pseudoaneurysm (measuring 2.6 × 2.4 × 2.1 cm) involving the left common and internal carotid artery (Fig. 1B and C). Swirling motion...