Fig. 1

Schematic representation of the recommended extent of surgical resection for oesophagogastric junction adenocarcinomas [35]. Seiwert I type (A subtotal oesophagectomy with superior polar gastrectomy), Seiwert II type (subtotal oesophagectomy with superior polar gastrectomy (B) or total gastrectomy with inferior oesophagectomy (C)), and Seiwert III type (D; total gastrectomy). Blue region is the tumor site