Comparison of Recurrence With High Retropharyngeal Nodal-Sparing Intensity-Modulated Radiation Therapy in HPV-Related and HPV-Unrelated Oropharyngeal Cancer.

High-RP sparing IMRT technique is associated with less than 5% of isolated recurrence in the high RP nodal region, despite most patients presenting with involved nodal disease. Our data showed no statistically significantly difference in the HPV+OPC vs HPV-OPC patients. As a result, these data suggest that continuing this practice is associated reasonable disease control and further studies are needed to evaluate patients' long-term quality of life and morbidity.