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Radiotherapy
Head and Neck lessons from the IMRT era
21 (16 %) loco-regional recurrence
17 in field, 4 marginal
No recurrences contralateral cranial to the SD
nodes
Three (marginal) Retropharyngeal node
recurrences therefore target area extended to
the level of C1 retropharyngeal
82% of cases contralateral dose to the
parotid below 26 Gy
•Eisbruch et al IJROBP 2003