I should add that my understanding is that vascular TOS almost always requires surgery (not conservatively treatable) and that surgery for strictly vascular TOS is highly successful (>90%). I have both neurogenic and vascular TOS, (more arterial than venous) on both sides and will likely have surgery within 1 month. My non-medical opinion is that if you have arterial symptoms you may have some neurogenic symptoms as well. Nerve pain is just difficult to identify sometimes. Here is a good diagram of the thoracic outlet space to illustrate.


http://my.clevelandclinic.org/disord..._syndrome.aspx