Hi Ms. Penny,

It is possible to have both TOS and CTS at the same time; however, CTS is also a peripheral nerve entrapment syndrome that mimics some of the symptoms of TOS.

An MRI, or additional EMG/NCT is unlikely to clear up the matter. Have you asked your guy if he would be willing to do (or refer you for) a scalene block? If the test is positive (i.e., your pain or other symptoms get better for a day or so), then TOS is the likely culprit.

An MRI of your arm would not be helpful, in my opinion.

Hang in there; some of us took years to diagnose because of other pain syndromes which share symptoms with TOS, like cervical syndrome, CTS, etc.

Is your guy a neurologist or a vascular surgeon? The latter can sometimes dx you on the spot, by manipulating your hands and arms into certain positions to see where there is weakness, numbing and tingling or pain.

Finally, try googling a thread on testing in this forum - there used to be a great one by Tam.

Alison