Target Volume Determination 2015

How do we define the CTV of elective neck? cN0

The CTV of N0 neck: 2003 guidelines (Appendix 3)

• 6 node levels (Ia, Ib, IIa, IIb, III-VI) and retropharyngeal nodes. • CT-based boundaries of each node level as a part of the CTV. • For conformal (3DCRT and/or IMRT) radiotherapy • Not for diagnosis, surgery or prediction of nodal involvement.