ObjectiveTo explore the clinical characteristics and diagnosis of primary small intestinal tumor (PSIT). MethodsRetrospective analysis of the clinical and pathological data of the 112 PSIT cases was made. ResultsDuodenum was the most common site for PSIT (62 5%). Leiomyomas were most common benign tumors which were most likely found in ileum and jejunum. Adenocarcinoma was the most frequently seen malignant PSIT followed by lymphoma and leiomyosacroma. The chief method of diagnosis is barium meal X ray examination especially with the hypotonic contrast X ray examination. Endoscopy can increase the diagnostic rate. Superior mesenteric arteriography sometimes helps in determing the site of gastrointestinal haemorrhage. CT scan can be helpful in establishing diagnosis, preoperative classification and postoperative recurrences. Conclusion Duodenal adenocarcinoma is most common PSIT, followed by malignant lymphoma, liomyoma and leiomyosarcoma. Hypotonic contrast X ray examination is most effective in diagnosis, and locating of small bowel tumors. Superior mesenteric artery angiography and CT scanning are also helpful.

Objective To compare the clinical effects between open thoracic drainage and conventional thoracic drainage tube applicated in patients after pneumonectomy.Methods 120 cases after pneumonectomy were selected as research subjects,and they were randomly divided into two groups according to the digital table,60 cases in each group.The control group was given conventional thoracic drainage tube,while the observation group received open thoracic drainage,The clinical effects were compared between the two groups.Results The length of hospital stay,total drainage and retention time of drainage tube in the observation group were significantly higher than those inthe control group,the overall incidence rate of complications in the observation group was 13.33％,which was lower than 23.33％ in the control group,but there were no statistically significant differences (t =1.60,1.97,0.72,x2 =2.00,all P ＞ 0.05).Conclusion Open thoracic drainage has similar clinical effect with conventional thoracic drainage tube on patients after pneumonectomy,it is worthy to be promoted clinically.