1病历摘要男,31岁。因持续间歇性便血2 a,近3个月交替伴发腹痛、腹泻、便秘,来我院求诊,以腹部肿块待查收治入院。查体:腹部平坦,右中下腹部有普遍明显压痛,右下腹可触极约3 cm×4cm大小肿物,边界不清,有触痛,可移动,质中,表面欠光滑。入院前后2次钡餐检查及1次胃镜检查均未见 1 medical record summary male, 31 years old. Continued intermittent blood in the stool for 2 a, nearly 3 months alternating with abdominal pain, diarrhea, constipation, to our hospital for treatment, abdominal mass to be admitted for admission. Physical examination: flat abdomen, right lower abdomen generally tenderness, the right lower quadrant can touch about 3 cm × 4cm size of the tumor, the boundary is unclear, tenderness, removable, quality, the surface is less smooth. Before and after admission 2 barium meal examination and 1 gastroscopy were not seen