1191 / 1481
Elective nodal Irradiation or not
Retrospective study of Han
Jpn J Clin Oncol 2012
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80 patients
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50 treated with involved field
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3 Y survival rate : 44 and 54 % ( no difference)
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Isolated nodal failure :
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0 % ENI vs 6 % involved field
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All isolated nodal failure were seen in patients not
staged with PET