Target Volume Determination 2015

Lymphnodes classification

• Divided in 3 levels: • Cervical (Gregoire) • Thoracic (RTOG-)

• Abdominal (RTOG-JGCA)

Grègoire et al. –Radiother Oncol – 2014 Korst et al. –J Thorac. Cardiovasc. Surg– 1998

Japanese Society for Esophageal Diseases – Esophagus – 2004