New research from Serbia shows how external compression of the veins occurs in many of those with CCSVI. Most of the patients had compression of the jugular due to extension of the transverse process of the cervical neck vertebrae.


Incidence and distribution of extravascular compression of extracranial venous pathway in patients w
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Objective To examine the incidence and distribution of extravascular compression of the extracranial venous pathway (the jugular and/or azygous veins) in multiple sclerosis patients with chronic cerebrospinal venous insufficiency evaluated by mulitislice computer tomographic angiography.