Adrenocortical Carcinoma Stage I TNM T1, N0, M0 The tumor is less than 5 cm (2 in.) and does not invade other tissues. Standard Treatment Complete surgical removal of the tumor. Five-Year Survival 50 to 60 percent Investigational • Adjuvant radiation therapy . • Adjuvant chemotherapy with mitotane. Stage II TNM T2, N0, M0 The tumor is larger than 5 cm (2 in.) but is stil1 not invasive. Standard Treatment Complete surgical removal, similar to Stage I.