I don't have pets, but this dA artist has one which (at the moment) has gone through surgery for cancer. I'd go into detail but the artist's journal will cover that: fav.me/d7ssccb
Donations are still being collected to pay off the treatment, and there are still some $15+ slots still open which means you can get some goodies by the awesome artist for donating! Quick link: www.gofundme.com/art4jinx
I myself can't donate, but I wanna help out by spreading the word a bit!