The findings in asymptomatic control group included 2 cases of ileal polyp (2.50%), 2 cases of angiodysplasia (2.50%), 1 case of intestinal erosion (1.25%), and 1 case of jejunal ulcer (1.25%).

无消状的体检者中发现：回肠息2例(2.50%)，小肠血管畸形2例(2.50%)，小肠黏1例(1.25%)，空肠孤立性溃疡1例(1.25%)。