This page discusses cancer, defined by uncontrolled cell growth and differentiation from benign tumors. Unlike normal cells, cancer cells can proliferate indefinitely. Key contributors to cancer inclu...This page discusses cancer, defined by uncontrolled cell growth and differentiation from benign tumors. Unlike normal cells, cancer cells can proliferate indefinitely. Key contributors to cancer include oncogenes and mutated tumor suppressor genes. Treatments range from surgery and radiation to chemotherapy and immunotherapies.