Thyroid cancer is usually very treatable, according to the American Thyroid Association. When papillary thyroid cancer is confined to the thyroid in patients under 45 years of age, the prognosis is excellent, with 10-year survival rates of 100 percent.
Even in patients over 45 years of age or with aggressive tumors, the outlook is good, although prognosis is better for those whose cancer can be destroyed via radioactive iodine treatment or removed surgically, notes the American Thyroid Association. There were only 1,890 deaths from thyroid cancer in the United States in 2014, according to the National Cancer Institute. This accounted for 0.3 percent of all cancer deaths. The five-year survival rate overall for thyroid cancer is 97.8 percent.