Table 2. Primary Tumor (T)a
| aReprinted with permission from AJCC: Gastrointestinal stromal tumor. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 181-9. | |
| TX | Primary tumor cannot be assessed. |
| T0 | No evidence for primary tumor. |
| T1 | Tumor ≤2 cm. |
| T2 | Tumor >2 cm but not >5 cm. |
| T3 | Tumor >5 cm but not >10 cm. |
| T4 | Tumor >10 cm in greatest dimension. |
