Hi Althea,
Did you mean vascular TOS?
Paget Schroetter Syndrome, a subset of TOS

What is Paget-Schroetter Syndrome?
This is the name given to the clotting of the subclavian vein (beneath the collarbone) which results in pain, swelling, blue discoloration, and congestion of the arm. It is most commonly caused by compression of the vein between the collarbone and the first rib, and is considered one of the venous manifestations of TOS.
http://www.surgery.ucla.edu/vascular...hroetter.shtml

come on over to our TOS forum -
http://neurotalk.psychcentral.com/forumdisplay.php?f=24