Fig. 3From: Pathological complete response of locally advanced colon cancer after preoperative radiotherapy: a case report and narrative review of the literatureThe image of radiation treatment planning system: an axial view of dose distribution. a We prescribed the initial dose of 40 Gy in 20 fractions with three-field technique. b After reconstituting the radiation field conforming with the shrunken tumor, we boosted the additional dose of 20 Gy in 10 fractions with five-field techniqueBack to article page