[Surgical anatomy of the gastroduodenal junction].

The structure of the gastroduodenal passage from the surgical viewpoint was studied in 50 preparations taken from corpses of people from neonatal age to 80 years. There is a well pronounced layer of the connective tissue on the border between the stomach and duodenum which may be of significance for pathogenesis of traumatic abruption of the duodenum from the stomach. The pyloric sphincter is characterized by asymmetry of the wall thickness and oblique disposition. The pylorus canal lumen after Heineke-Mikulicz pyloroplasty became about 7.7 times larger, that after Jadd-Tanaka was 2.6 times larger.