In case anyone is curious, I have been fortunate so far and have not encountered Lymphosarcoma or Lymphoma in any ferrets that have come through here. (But I know my time is coming.) Regarding the occurrence of adrenal tumors found in my shelter, in the last year I have had 5 adrenal tumors that were in MF ferrets, 2 that were not MF, and have 3 MF currently awaiting tests to confirm adrenal tumors. Have 2 coming in this week with symptoms of adrenal tumors, but don't know yet if they are MF or not. I think these are things that merit looking into. Personally, it seems the females are more prone to have adrenal tumors than males. Out of all twelve ferrets mentioned above, only 2 are males. I have seen adrenal tumors in ferrets as young as 3-1/2 years. Kisses to the fuzzy kids. Trish Director, Ferrets First Rescue & Shelter [Posted in FML issue 1731]