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Slide 17
Lymph nodes:
Changing CTV-concept in mediastinum
Perez, Brady 1992
„Elective nodal irradiation“ (ENI)
= Prophylactic inclusion of large parts
of mediastinum in CTV
high doses to large volumes of
normal tissue
limited possibility for dose
escalation
No randomised prospective data
supporting ENI
Concept of ENI presently being left
Non systematic nodal spread
Diagnostig uncertainty
of CT based N-staging