Dosimetric risk factors for radiation esophagitis in patients with breast cancer following regional nodal radiation

Figure 1 The esophageal area from the lower edge of the cricoid cartilage to the lower edge of the aortic arch. A and B: The esophagus is outlined in the front and side view; C: An illustration of the supraclavicular nodal outlined and dose distribution; D: An illustration of the chest wall and axillary nodal outlined and dose distribution after mastectomy; E: An illustration of the breast/tumor bed outlined and dose distribution after breast-conserving surgery. The colors corresponding to the prescription dose from low to high are blue, green, yellow, and red.

Figure 2 Proportion of patients with radiation esophagitis over time. G0: No radiation oesophagitis; G1: Grade 1 radiation oesophagitis; G2: Grade 2 radiation oesophagitis.