Leon Kennedy. Third degree brain cancer is one of the recent cases, just a couple of days ago. The tumor did not have time to metastasize, there is a chance, but it is too small to be sure of the success of the operation and the procedures leading to it – the organ is fragile, and any tiny, insignificant mistake will turn into a full-scale disaster. A vegetable or a live one with a possible– fortunately unlikely–relapse.