[Surgical anatomy of the esophagus and stomach in relation to stomach pull-through].

Surgical-anatomical related risks with respect to: 1. Resection of the esophagus: As long as the tumor is confined to the wall, there is no risk of bleeding because, close to the esophagus, all the vessels have become minute; when torn, hemostasis will occur. For the same reason the recurrent nerves are not endangered as long as the main trunk is not disrupted and the anastomosis not performed within the cranial 3-5 cm. 2. Substitute: Preservation of the gastroduodenal and superior mesenteric arteries is essential to supply the gastric tube via the gastroepiploic vessels. The fundus, i.e., the top of the tube in particular in gastroplasty procedures is extremely vulnerable to pressure and tension.