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Table 23 Suggested fractionation regimens for Unknown Primary (postoperative setting)

From: Technical guidelines for head and neck cancer IMRT on behalf of the Italian association of radiation oncology - head and neck working group

  D (Gy) d (Gy) fxs OTT (wks) Comment
CTV2 60-64 2 30-32 6 (64 Gy if ECE+) [168]
  63 1.8 30 6  
CTV3 58.1 1.66 35 7  
  54 1.8 30 6