Radiotherapy Volume | Definition | |
---|---|---|
With ENE or positive margins (30 fractions over 6 weeks) | Without ENE or positive margins (25 fractions over 5 weeks) | |
CTV60 | Â | Areas of positive margins and/or ENE |
CTV54 | CTV50 | Entire tumor bed and any dissected neck nodal levels |
CTV48 | CTV45 | Undissected nodal areas that must be treated based on pathological results. Treatment volumes must include nodal levels adjacent to areas containing involved nodes (eg. if there is a level II node positive, levels Ib and V must be included)  – All patients with N1 (ipsilateral) nodal disease:   ◦Ipsilateral: Ib, II-V, RP   ◦Contralaterala: II-IV, RP only if extension to posterior pharyngeal wall or soft palate  – All patients with N2 disease:   ◦Ipsilateral and contralateral: Ib, II-V, RP |