[Pseudotumors after gastric and small bowel surgery (author's transl)].

After surgery of the upper gastrointestinal tract operation induced alterations with tumoraspect (pseudotumors) must be separated from malignomas. There are characteristic pseudotumors after the different operations that can be identified during the barium meal. If an early postoperativ roentgenexamination is available, the differential-diagnosis may be possible even in otherwise doubtful cases.