The five-year survival rates for stages I, II, III and IV of salivary gland cancer at the time of diagnosis are 91, 75, 65 and 39 percent, respectively, according to the American Cancer Society. Furthermore, the patient's age, her response to treatment and the cancer stage also affect her outlook.
Salivary gland cancer refers to the abnormal growth of malignant tumors that starts in the salivary glands located inside or near the mouth, explains the American Cancer Society. Salivary glands produce saliva, which contains enzymes that aid in food digestion. The three most common types of salivary gland cancer are low-grade mucoepidermoid carcinomas, intermediate-grade adenoid cystic carcinomas and high-grade adenocarcinomas.