541 / 1481
Spencer et al.
Cancer
2014; 120:3994-4002.
• 406 pts (retrospective studies):
•
SCC of head-and-neck
• IMRT
±
concurrent chemo:
•
56 Gy/35 fr. to the PTV2 of the “elective” neck.
• 2 groups:
•
Omitting contralateral high node level II : 172 pts.
•
Omitting contralateral high node level II and
retropharyngeal lymph nodes: 234 pts.
Target volume reduction (2)