Standard Treatment These tumors are treated in the same manner as Group I lesions.
Five-Year Survival 65 percent
Group III
Tumors cannot be removed at initial surgery because they have infiltrated into surrounding tissues or lymph nodes , but have not shown evidence of spread to distant sites.
Standard Treatment These patients are treated with similar combination chemotherapy and radiation after surgery, but may have a second opportunity at surgery to remove the tumor completely after it has decreased in size.
Five-Year Survival 45 percent
Group IV
The tumor has spread to distant sites at the time of diagnosis.