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Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastrointest Oncol. Aug 15, 2014; 6(8): 263-274
Published online Aug 15, 2014. doi: 10.4251/wjgo.v6.i8.263
Figure 1
Figure 1 Radiation field for a lower esophageal cancer. A: Pre-operative with minimal involvement of gastro-intestinal junction: celiac nodes are not covered. Intensity modulated radiotherapy is used. Blue: Gross tumor volume; Green: Clinical target volume; Red: Planning target volume; B: Post- operative with involvement of gastro-esophageal junction. Intensity-modulated radiotherapy treatment. Blue: Anastomosis; Green: Clinical target volume; Orange: Clinical target volume concomitant boost, planning target volume not shown.