I just got off the phone with the vet and part of the biopsy results are in...Panther does have vaccine related fibrosarcoma. The vet still waiting on the rest of the biopsy to determine margins. She said the next step is to meet with an oncologist to see if I want to pursue radiation treatment for Panther. If I choose that option it is going to run between $4,000 to $5,000. I don't know what I am going to do as of now. I was really hoping that he did not have cancer, especially fibrosarcoma. I am going to make an apointment with the oncologist because I do have a lot of questions. I am so upset. I can't stop crying.