I got Lucy an ultrasound and xray today and she has a large bladder stone. They can not tell from any of the tests if it is from struvite or oxylate crystals that caused the stone. Stones caused by the former can sometimes be dissolved over time with a special diet, while stones by the latter need to be removed by surgery which is dangerous for an FELV+ cat because surgery often triggers the virus to become active. The plan is to try the diet for a month and re-xray to see if there is any change.
I am glad she does not have cancer. I am of course worried about the stone, and feel bad because she must be very uncomfortable as it takes up about half her bladder when empty. Just wanted to let you know as I have posted about her and asked questions. Thanks, Michelle L.