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(A) Case of mesorectal PET−/MRI+ LN (red arrow), included as mesorectal GTV N (yellow line) in 54 Gy high-dose volume (light blue line). (B) Case of disease upstage and dose escalation on MRI− (red arrows)/PET+ (yellow line) inguinal LN. (C) Case of disease upstage with a dose escalation on MRI−/PET+ common iliac LN (red line) and inclusion of common iliac LN level to 45 Gy low-dose volume (green line).
