Table 1. Primary Tumor (T)a
| TX | Primary tumor cannot be assessed. |
| T0 | No evidence of primary tumor. |
| T1 | Tumor ≤5 cm in greatest dimension, no extra-adrenal invasion. |
| T2 | Tumor >5 cm, no extra-adrenal invasion. |
| T3 | Tumor of any size with local invasion, but not invading adjacent organs.b |
| T4 | Tumor of any size with invasion of adjacent organs.b |
| aReprinted with permission from AJCC: Adrenal. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 515-20. |
| bAdjacent organs include kidney, diaphragm, great vessels, pancreas, spleen, and liver. |
