So the vet called me yesterday and gave me and Callie some wonderful news. Callie had leiomyoma which is a benign tumor that was located in her intestines. And since they took out all of it there is no additional follow-up is necessary. So she is cancer free and can live a normal life after this whole ordeal! (Which is great because we all believed it to be cancer and that we'd have to keep an eye on her to make sure it didn't come back.)
Other updates are that she is finally on solid kibble and eats 4 times a day (maybe in the next week or so we will go back to 2 times a day.) She is protective of her stomach when other dogs try and sniff, but I think once the staples come out she will be fine again. The staples should come out Monday (that is depending on if I can get in or not.)
Oh and I found this toy and had to buy it as I found it fitting for Callie. I think she earned it!