Head and neck 3D-CRT example: Tonsillar fossa Ca.
T1-T3, N0
CTV = primary tumor + uni-lateral neck (level II-IV)
46 Gy 3D-CRT
BT boost
left parotid gland
PTV 0-46 Gy
spinal cord
right parotid gland
right SMG
‘simple’ 3D CRT plan