Cancer is a collection of diseases that can affect basically every organ of our body all of which have in common uncontrolled cellular growth. The cells forming our body have the potential to grow in the context of wound healing or for the constant replacement of cells in our blood skin or intestine. Behind every newly diagnosed malignant tumor in adulthood there is an individual history of probably 20 or more years of tumorigenesis. Therefore malignant tumor formation often takes time making ca