Jynx was brought in by someone who didn’t bother to seek medical attention until he had lost all function in his hind quarters. They were not willing to pay for any testing or treatment. Basically he was surrendered.
It turned out he had end-stage leukemia. As a result of the leukemia he had developed a tumour on his spine and, at this late stage, there was nothing that could be done. He was euthanased.
Despite his appearance he was a stunning cat, very friendly and affectionate. There was no reason for him to die so soon.
FeLV (Feline Leukemia Virus) is a terminal disease but there is no need to euthanase during the early stages of the disease – see our experiences of the virus here.