[Typical changes of the intestinal wall due to oral stenosing processes (author's transl)].

Two different changes of the intestinal wall, which seem to be of stenotic orgin, can be observed prä-stenotically. One of these changes is represented by diverticulosis, whereas the other is the so-called ischaemic-ulcerous lesion of the mucosa. The latter accompanying disease supplies highly important preoperative information. This condition can be diagnosed practically exclusively by the roentgenologist. In many cases, stenosis makes endoscopic assessment impossible. Diverticulosis is of theoretical interest in this connection. The article goes into the possible aetiology of the changes. Two typical cases underline the importance of the diseased conditions under discussion, which are relatively rare, as is evident from a statistical evaluation of the author's case material.