'Saved By The Bell' actor Dustin Diamond confirmed that he is fighting for his life. Dustin is battling stage 4 cancer. He was admitted to the hospital earlier this week and sources were afraid that that would be the diagnosis. According to his rep, the cancer has spread throughout his body. Dustin is being treated with chemotherapy. According to TMZ he first discovered a lump in his throat, which is what ultimately led to the diagnosis.