Katie: Thank you for your informative letter about lymphosarcoma. I am glad that Bandit responded so well to treatment. I hope she continues to stay healthy. Ben is rather thin, although she usually goes through a thin stage in the spring. Her activity level is good. The doctor said her spleen felt OK. So I think that if she does have cancer, we've caught it early. We will be taking her back for her follow-up appointment in about 2 weeks. I have a few more questions. I assume that a biopsy involves general anesthesia. How risky is this for ferrets? I know that chemotherapy can be a horrible ordeal for humans. How bad are the side effects for ferrets? How often does a ferret have to visit the vet during treatment? Thanks again.--Clare [Posted in FML issue 0490]