Target Volume Determination 2015

Tis Carcinoma in situ /High-grade dysplasia T1 lamina propria / submucosa T1a lamina propria / muscularis mucosae T1b submucosa T2 muscularis propria T3 adventitia T4 adjacent structures T4a pleura, pericardium, diaphragm, or adjacent peritoneum

OESOPHAGUS 7 TH EDITION (2009)

Oesophageal carcinoma is staged by using the TNM classification, which was updated by the AJCCin 2009 and includes tumours of the stomach centered within 5 cm of the gastroesophageal junction that extend into the oesophagus N0 No regional ly ph node metasta is N1 1 to 2 regional lymph nodes N2 3 to 6 N3 >6 M0 No Distant Metastasis M1 Distant metastasis present

T4b other adjacent structures, ( aorta, vertebral body, trachea )