Samantha's surgery went down Monday December 18th and was successful. They took an X-Ray before starting surgery to see if was even worth the attempt. There was no sign of metastasis so they went ahead with the surgery to remove the growth. Once they had her open, the vet changed his diagnosis and now no longer thinks it was even cancer. Seems it was just some sort of cyst. She's home, fighting her neck collar, trying to rest and recover despite the ever present and curious Homer.
A Christmas miracle!