Anatomy of esophageal cancer primary site, including typical endoscopic measurements of each region measured from the incisors. Exact measurements depend on body size and height. For tumors of the EGJ and cardia, location of cancer primary site (ie, esophagus, stomach) is defined by cancer epicenter.
AJCC: American Joint Committee on Cancer; v: vein.
Modified from: Rice TW, Kelsen D, Blackstone EH, et al. Esophagus and esophagogastric junction. In: AJCC Cancer Staging Manual, 8th Ed, Amin MB (ed), Springer Science+Business Media, LLC, New York, 2017.
