Completely updated and redesigned, this chart defines cancer and shows normal cells and malignant (cancerous) cells. Provides cancer incidence statistics by site on the body and gender. Discusses how cancer spreads and shows the four stages of cancer. Also lists risk factors, symptoms, treatments and preventative measures. Size is 20" W by 26" H. Charts come in Laminted (PL1.5), Styrene Plastic (PST) and Paper (PU).