Target Volume Determination 2015

The oesophageal wall is visualized as five alternating layers of differing echogenicity, allowing accurate preoperative determination of the depth of tumour invasion .

EUS: T-STAGING

Endoscopic US can accurately help differentiate between T1, T2, and T3 disease, which is important for neoadjuvant treatment

T2 N0

T4 - Trachea

T2 N1