Oh no! I hate hearing that "C" word, especially in regard to a cat's mouth. If it is any consolation, like your vet told you, cancer on the lower jaw has a better chance of treatment than in other places in the mouth. Morgan's was on the top jaw. But sadly, the surgery to remove the jaw is part of the treatment. I couldn't have done that to Morgan either, even though it wasn't an option for him. I'm glad to hear the good news for Storm but will be anxiously waiting to hear an update on Sunny.