Cancer is a diseases characterized by uncontrolled multiplication and spread of abnormal forms of the bodys own cells. The terms cancer, malignant neoplasm (neoplasm simply means new growth) and malignant tumor are synonymous. Both benign and malignant tumors manifest uncontrolled proliferation, but the latter are distinguished by their capacity for dedifferentiation, their invasiveness and their ability to metastasize (spread to other parts of the body). In this chapter, we shall be concerned only with the therapy of malignant neoplasia or cancer. The appearance of these abnormal...