A.頜下淋巴結B.咽后淋巴結C.二腹肌后組淋巴結D.耳前和頰部淋巴結E.頜下和前上頸淋巴結群
A.30-40GyB.40-50GyC.50-60GyD.60-70GyE.70-80Gy
A.解剖結構復雜,不易布野B.對放射線不敏感C.發(fā)現(xiàn)時常屬晚期D.根治性放療易有氣管、食管反應E.易有頸段脊髓損傷