B., 12 years old, was admitted on 13 / ІІ 1965 with a diagnosis of chronic gastritis. 2 / IX with a diagnosis of stenosis of the pylorus on the basis of duodenal ulcer was transferred to the surgical department.

Mesenteric cysts are quite rare, and there are only isolated descriptions of these tumors in the literature.

In 1857, the Czech anatomist Treitz first described an internal abdominal hernia, calling it hernia retroperitonealis. Treitz's hernia is relatively rare and difficult to diagnose.

K., 62 years old, entered at 11 o'clock. 30 minutes. 16 / ѴII 1963 with a diagnosis of mechanical intestinal obstruction (probably due to a tumor), diffuse peritonitis, right-sided focal pneumonia, coronary cardiosclerosis, pneumosclerosis.

T., 36 years old, entered 19 / II 1965, 4 hours after sudden pain in the epigastric region, with complaints of severe abdominal pain, nausea. Twice there was vomiting. Previously, there were no abdominal pains.