T staging of oropharyngeal tumours is as follows:
The oropharynx includes the base of the tongue, the inferior surface of the soft palate and uvula, the anterior and posterior tonsillar pillars, the glossotonsillar sulci, the pharyngeal tonsils, and the lateral and posterior pharyngeal walls.
- T1: tumour is 2 cm or less in greatest dimension
T2: tumour is more than 2 cm but not more than 4 cm in greatest
- T3: tumour is more than 4 cm in greatest dimension