Quote Originally Posted by FireSpark View Post
From Book of Vile Darkness

That's all the pertinent information there is. The text doesn't specify that the ability does not work against magical diseases, so I would say that a Cancer Mage could potentially become death itself if exposed to this magic. Thankfully he couldn't do it himself, since the Cancer Mage PrC is a 10-level class that actually has nothing to do with magic at all. No caster progression, no magic prereq's, nothing. Rather silly name for it actually.
From what I understnad from what you ust quoted, yes he could, just take no more than three levels of cancer mage, the rest wizard.