Staging for Oropharynx Cancer
See Staging for general staging rules. Specific tumor stages for the oropharynx region are as follows:
| TX | Primary tumor cannot be assessed |
| T0 | No existence of primary tumor |
| Tis | Carcinoma in situ |
| T1 | Tumor 2 cm or less in greatest dimension |
| T2 | Tumor more than 2 cm but not more than 4 cm in greatest dimension. |
| T3 | Tumor more than 4 cm in greatest dimension. |
| T4 | Tumor invades adjacent structures (e.g. through cortical bone, soft tissues of the neck, and deep muscles of the tongue). |
