Tumor staging for HPV-related OPSCCa
| T Category | T Criteria |
|---|---|
| T0 | No primary identified |
| T1 | Tumor ≤2 cm in greatest dimension |
| T2 | Tumor >2 but ≤4 cm in greatest dimension |
| T3 | Tumor >4 cm in greatest dimension or extension to lingual surface of epiglottis |
| T4 | Moderately advanced local disease; tumor invades the larynx, extrinsic muscles of tongue, medial pterygoid, hard palate or mandible, or beyond |
↵a The T4a and T4b features from OPSCC staging in the seventh edition are now combined as T4 in the new eighth edition. Table adapted with permission of the American Joint Committee on Cancer, Chicago, Illinois. The original source for this material is the AJCC Cancer Staging Manual.1