Validation and assessment of discordance of the 8th edition AJCC (American Joint Committee on Cancer) clinical and pathologic staging systems in patients with p16+ oropharyngeal cancer treated with surgery and adjuvant radiation at a single institution

- AJCC 8th HPV+OPCSCC Staging - A better 5-year OS predictor than the 7th edition.
- Significant Discordance between Clinical and Pathological staging in 8th edition.
- AJCC 8th edition pathological staging - highest discriminant function to predict OS.