TVD 2017

GTV –CTV margin

Longitudinal • SCC

GTV + 3 cm proximal and distal

• ADC

GTV + 3 cm proximal and 5 cm distal (if doses >

45Gy limit to 2 cm in the stomach)* • 1 cm above any involved nodes , whichever is more cephalad • For proximal tumor the upper border should not extent above of the cricoid cartilage unless there is gross disease at that level • This margin should be oriented along the esophageal mucosa Wu AJ et Al – Int J Radiat Oncol Biol Phys– 2015