We report female patient, age 51, with clinically definitive multiple sclerosis 
(CDMS) since 1998, who underwent two PTA procedures with stent implantation for 
CCSVI in 2010. Expanded disability status scale (EDSS) worsened since the 
procedure from 4.5 to 6. Total number of three stents was implanted (two of them 
in the right internal jugular vein). In six month time, in 2011, patient was 
referred for independent examination by computer tomography (CT) phlebography 
for right-sided neck pain. Dislocation of stents on the right side and 
thrombosis of left sided stent was found. Conservative approach was used so far. 
Our short report is showing possible complications of PTA and stenting in 
jugular veins in so called CCSVI and bringing information about neurological 
state (EDSS) worsening in a subject. Continuation of stent migration in the 
future is probable, possibly resulting in pulmonary embolism with fatal risk for 
the patient. We strongly ask for restriction of PTA procedure in so called 
CCSVI, which concept was not proven to be relevant to MS.