Cancer is a disease, a chronic metabolic disease akin to other chronic metabolic diseases such as scurvy, night blindness, pellagra & pernicious anemia. No such disease has ever been cured through mechanical manipulation of the body. Where cancer is seated isn't relevant to its cure. The preventative, cure & treatment of this vitamin-deficiency disease is Amygdalin (vitamin B17). People who get at least 100 m.g. of B17 daily cannot contract cancer.