i.... i think this could use a different name. Very apt, though.
Didn't the deer just steal cancer genes or something rather than continuing to have... the same exact cancer in it? I'd think an actual bone cancer would likely spread more spherically, and considering it's made of bone itself it may cause other unforeseen damages.
Do its bone-tumor-antlers grow velvet like actual deer antlers? If so, how would they remove it? And if not, how would the exposed, living bone be protected from the environment?