Table 1. Patient and tumor characteristics.

No. of patient	Gender	Age	Primary site	T	N	Treatment method	Locoregional recurrence	Salvage surgery	Follow-up
1	M	51	Palatine tonsil	3	2c	Cisplatin-based CRT	LNMa	Yes	37 months DM, DOD
2	M	68	Palatine tonsil	2	2b	Cisplatin-based CRT	No	No	60 months NED
3	M	63	Base of tongue	4	2c	Cisplatin-based CRT	No	No	46 months NED
4	M	56	Palatine tonsil	4	3	Cisplatin-based CRT	No	No	39 months NED
5	F	55	Palatine tonsil	2	2a	Cisplatin-based CRTb	No	No	37 months NED
6	M	63	Vallecula	3	2c	Cetuximab-based CRT	LNM	No	17 months DM, DOD
7	F	63	Palatine tonsil	2	2b	Cisplatin-based CRT	No	No	35 months NED
8	M	68	Piriform sinus	3	1	Cetuximab-based CRT	No	No	30 months NED

^a, histopathologically proven; ^b, toxicity precluded complete chemotherapy; M, male; F, female; age at diagnosis (in years); LNM, lymph node metastasis; DM, distant metastasis; DOD, dead of disease; NED, no evidence of disease.