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小肠肿瘤包括十二指肠肿瘤及肠系膜小肠(即空肠、回肠)肿瘤,约占胃肠道肿瘤的1%～2%。西方国家发病率高于亚洲国家,总的小
Small intestinal tumors include duodenal tumors and mesenteric small bowel (jejunum, ileum) tumors, accounting for about 1% to 2% of gastrointestinal tumors. The incidence of Western countries is higher than in Asian countries, the total small