^aTwo T2 patients in borderline-resectable had large lymph node metasitasis with probable invasion to surrounding tissues and 7 T1–3 patients in unresectable had cervival or supraclavicular lymph node metastasis; ^bOperability was judged by surgeons according to patient’s medical condition including comorbidity. This does not mean resectability; ^cPF-q4w, 2 cycles of cisplatin and 5-fluorouracil every 4 weeks; PF-low dose, cisplatin and 5-fluorouracil 5 days a week for 20 days; ^dFifteen patients received definitive chemoradiotherapy due to poor response after induction chemoradiotherapy; ^eNA, not available/operability was not fully evaluated in unresectable patients.