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