Post mortem exams of 2 pwMS show marked stenosis of left internal jugular veins and congestion of the intercranial veins. "We demonstrate, for the first time as far as we are aware, the presence of anatomical alteration in the veins of the neck with impaired venous drainage from the central nervous system in two patients with multiple sclerosis who died from other causes."


Replies to Chronic cerebrospinal venous insufficiency and multiple sclerosis: science or science fic
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We write in relation to the editorial commentary from Khan et Tselis (1) who rightly suggest caution to consider chronic cerebrospinal venous insufficiency (CCSVI) as a pathological entity and cast serious doubt on