Definition and extent of resection for type I, II, and III adenocarcinoma of esophagogastric junction

These figures represent the Siewert classification for tumors arising at the esophagogastric junction (EGJ) and the extent of the surgical resection for an EGJ adenocarcinoma, including regional lymph nodes, based upon the Siewert classification.
Type I adenocarcinoma is located in the distal esophagus and is resected by a subtotal gastrectomy, subtotal esophagectomy, and regional lymphadenectomy.
Type II adenocarcinoma arises from the cardia or the EGJ and is resected by a subtotal gastrectomy, subtotal esophagectomy, and regional lymphadenectomy, or a total gastrectomy, distal esophagectomy, and regional lymphadenectomy.
Type III adenocarcinoma originates in the subcardial gastric location, infiltrates the EGJ and distal esophagus from below, and is resected by a total gastrectomy, distal esophagectomy, and regional lymphadenectomy.