Clinical characteristics of patients with retropharyngeal lymph node recurrence (n = 26).

M, male, F, female, S, surgery; RPLN, retropharyngeal lymph node; CCRT, concurrent chemoradiation; RT, radiotherapy; C/T, chemotherapy; DOD, died of cancer or related disease; SUV, standard uptake value; NER, no evidence of recurrence; AWD, alive with disease. *The patient had an unusual involvement of the parotid gland. #Follow-up was calculated from the first day of RPLN recurrence identification.