I'm so glad someone has created this thread in a spirit of help to anyone else facing this with their beloved fur kid. If we had it to do again we would very aggressively obtain diagnoses as things came up. Sam had too many "maybe" conditions going on that by the time we got the cancer diagnosis, it really was too late to do anything constructive. Our list would look like:
-Upon the first suspicion of Cushings disease based on lab work, we would do the tests for diagnosis even without classic clinical signs. Our vet had been jaded by too many Cushings cases over the years to appreciate how crucial it was for Sam to set it right to preserve his immunity;
-Upon the first suspicion of any neurological issue (his gait changes), we would get all the imaging tests we could afford. This would have told us if he had a brain tumor, which would have made it easier to figure out what to do if the bladder cancer diagnosis had still come up later;
-Upon x-ray confirmation of arthritis in his spine, we would have seen an orthopedist to get expert advice on any necessary lifestyle changes (I didn't know he should no longer jump or climb stairs, even to the best of his ability).
-We would use the fairly ready access to veterinary specialists in our area to assure that Sam got the best possible care for each issue as it came up, instead of relying on our general practice vets, who, though experienced and competent, are to busy to focus on specialty care.
Thank you to all who contribute to this forum.