What are your criteria for inclusion of the retropharyngeal LN in node negative H&N cancer patients?

I generally include lateral RP nodes in elective volumes for nasopharynx, oropharynx and hypopharynx tumors and any H&N tumor that has invaded into pharyngeal wall/soft palate. Also should consider inclusion in elective volumes for treatment of hard palate / nasal cavity / paranasal sinus primaries....

No issues with dysphagia.

Can look at the paper we published (https://www.ncbi.nlm.nih.gov/pubmed/28094212). We don't always treat to skull base for node negative pts.