Lewis B S
Department of Medicine, Mount Sinai Medical Center, New York, New York, USA.
Gastroenterol Clin North Am. 2000 Mar;29(1):67-95, vi.
Bleeding from the small intestine may be difficult to diagnose, because of the organ's length, free intraperitoneal location, and the nature of the lesions that bleed in the small bowel. Although there are several causes of intestinal bleeding, angiodysplasias are most common. Several different tests can be used to identify a bleeding site preoperatively and intraoperatively, including enteroscopy.
由于小肠的长度、腹腔内的游离位置以及小肠内出血病变的性质，小肠出血可能难以诊断。尽管肠道出血有多种原因，但血管发育异常最为常见。术前和术中可使用几种不同的检查来确定出血部位，包括小肠镜检查。
