Where do they think the cancer is located if they can't feel it or see it on x-rays? It could be a good thing if they find an early growth that can be removed. Cats do well on chemotherapy overall, if the cancer is caught early enough.

What about FIP, the dry kind. This can cause lack of appetite, malabsorption, general malaise, and there is no test to prove that cat has the disease. It's a disease that has a very broad range of symptoms, except when it is what they call "wet" FIP which results in abdominal bloating and a rapid decline. There is no cure for either version and it's always fatal. Better that Daisy has cancer. And the prednisone can help shrink a tumor really well - in fact I'm a bit surprised they are using it prior to exploratory surgery since it will make a growth harder to find - I think, I'm definitely not a tech.

I can imagine how worried your friend is and I hope the vets find out the problem, and that's it's something they can cure.