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The common carotid artery is the large artery whose pulse can be felt on both sides of the neck under the jaw. On the right side it starts from the brachiocephalic artery (a branch of the aorta), and on the left side the artery comes directly off the aortic arch.
Cerebrovascular disease includes a variety of medical conditions that affect the blood vessels of the brain and the cerebral circulation. Arteries supplying oxygen and nutrients to the brain are often damaged or deformed in these disorders. [2]
For imaging of both the extracranial and intracranial arteries supplying the area of brain ischaemia, examination methods like catheter, MR/CT angiography or cervical duplex plus transcranial Doppler ultrasonography are required. They allow an exclusion of large vessel stenosis (≥ 50%). [2]
Typical findings on angiography include smooth wall segmental stenosis of multiple arteriessometimes with post-stenosis dilation or bleeding. [5] In cases involving small vessels, angiography is usually normal and a biopsy is needed to confirm the diagnosis. [ 5 ]
Aqueductal stenosis is a narrowing of the aqueduct of Sylvius which blocks the flow of cerebrospinal fluid (CSF) in the ventricular system. Blockage of the aqueduct can lead to hydrocephalus , specifically as a common cause of congenital and/or obstructive hydrocephalus.
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Stenosis (from Ancient Greek στενός (stenós) ' narrow ') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. It is also sometimes called a stricture (as in urethral stricture ).
Craniosynostosis where no extracranial deformations are present, is called non-syndromic or 'isolated' craniosynostosis. [6] When there are extracranial deformations present, for instance involving the limbs, heart, central nervous system or the respiratory tract, [ 12 ] you may speak of a syndromic form of craniosynostosis.
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