ESTRO 2025 - Abstract Book

S1057

Clinical – Head & neck

ESTRO 2025

Oropharyngeal cancer was the most common diagnosis (64%), with 81.3% of these cases being HPV-related. T3-T4 tumors were present in 55.4% of patients, and 76.5% were node-positive. Patients dependent on PEG tubes for more than 3.3 months had significantly lower survival rates compared to those who removed their PEG tubes within 3.3 months post-radiation (P = .007), Fig 1.