Well I would be glad that surgeon is gone... perhaps he didn't like being found out to have jumped into operating on those ganglions prematurely..
but a hand surgeon tends to focus on hands...unfortunately..

On to better docs now that you have a dx.

Usually after x rays , then MRI is ordered just to rule in/out any cervical spine factors.. or extra cervie ribs..

Be sure to ask for expert TOS knowledgeable PT, not just any PT you need the most experienced to do the best for you..
plus there is plenty of self care things you can learn about here.

trigger points, spasms, posture, ergonomics , careful stretching and re balancing your muscles..

check out our sticky threads up near the upper part of the main tos forum page.