The paper presents a rare case of jejunum adenocarcinoma at a 66-year old female. The patient was admitted to the hospital due to not characteristic abdominal pain and periodical nausea and vomitting lasting few months. After realized laboratory investigation, especially on the basis of contrast, radiological procedure of the gastrointestinal tract, the high obstruction was detected. Then the patient has been operated on. Postoperative period proceeded without complications. Eleven monthly observation after the operation showed no recurrence of cancer. The presented case confirms vole of contrast radiological procedure of the gastrointestinal tract, which is simple and generaly available examination, in the diagnosis of bowel obstruction. The correct interpretation of the result was an indication of surgical intervention. However the final diagnose is established on the base of postoperative histopatological examination.