Center 1 | ||
---|---|---|
Stage (AJCC/UICC 8th) | CTV1 | CTV2 |
T3-4N0 | GTVtb with a margin of 1–1.5 cm and bilateral levels II, III | Bilateral levels IV |
N +  | GTVtb with a margin of 1–1.5 cm and involved nodal levels and the next levels | Uninvolved bilateral levels II-IV; Ib or/and V |
Dose prescription | 60.06Â Gy in 33 fractions | 50.96Â Gy in 28 fractions |
Center 2 | ||
Stage (AJCC/UICC 8th) | CTV | |
N0/N +  | GTVtb with a margin of 1–1.5 cm and bilateral levels II-IV | |
Dose prescription | 50Â Gy in 25 fractions | |
ENE or positive margin | Â | |
 | GTVnd-tb, GTVtb | |
Dose prescription | 66–70 Gy |