Radiation dose mapping and anastomotic complications after trimodality therapy for esophageal cancers.

•The anastomotic leakage rate was 12% and the stricture rate was 22%.•Patients with higher anastomotic complications rates had a significant higher mean dose of radiation to the esophagus below the level of the azygous vein.•We did not find a difference in mean gastric doses in patients who did/did not have an anastomotic complication.•Anastomotic complications did not affect survival outcomes.