This was standard operating procedure for decades whenever any kind of cancer surgery was done and not just on nerve bundles. It used to be called a ‘frozen section’ but I am sure some PR whiz has come up with something better to fit in with our sleek, acronym infested lives.
If a surgeon says that he does this it shows an extra measure of care; whether he actually does it or not is anyone’s guess…
You could access the post surgical pathology report and see if there were multiple steps of scrutiny just to be sure.
Phil