Krypto Pepin Surgery

There are some families where their dog is like another child, we're one of those families. We've had Krypto since he was a 6 week old puppy and now he's going on 4. Recently my daughter noticed a bump on his leg and we decided to keep an eye on it. He's sort of a clumsy dog so sometimes he runs into things and can scratch himself. But this bump was different, in a few days his fur around it had fallen off, and the bump didn't look like it was getting better. So my wife took him to the vet and turns out we have to do a surgery to check if it's cancerous. Unfortunately these surgeries cost a lot and we just don't have the money for it. But this dog is a part of our family; a dog my wife, children, and friends love to pieces. Any amount you can donate will be helpful!