Boney mass on left front paw

Hello vets, my 13yo fixed male ragdoll cat has a small bone-like mass on his left paw. His chest x-rays were normal. He has no pain or difficulty walking; jumping. I would appreciate your opinion on what it could be and if it could be a benign issue.thank you.

Hello -  Despite the disappointing sentence that will follow this one, please read to the end of this reply.  I am afraid that we do not give second opinions  on this site; it is professional bad manners for a vet who doesn't know as much about the case as the first vet, to then profess to know better.  However, I suspect that there was big news here and understand that you would like a second opinion.  A good way to get one of these would be to ask your vet; they will completely understand why you want reassurance and could send the radiographs and clinical observations / notes  to a colleague, specialist or even perhaps a pathologist.  It is good news that the lungs are clear but some lung changes can be smaller that the radiograph can 'see'.    What is your vets' plan from here?