例1男，57岁，因间歇性脓血便5个月伴大便变细1月余入院。乙状结肠镜检示：距肛缘scm3点处可见一ZcmXIcmXO．scm大菜花样肿物，表面溃疡，部分组织坏死，触之出血，活检病理报告为直肠腺癌。因患者既往有“胃病”史，放行上消化道X线钡餐检查，发现胃体部有一占位病变。胃镜检 Example 1 Male, 57 years old, was hospitalized for more than one month due to intermittent pus and bloody stools for 5 months with thin stools. Sigmoidoscopy revealed a ZcmXIcmXO at the scm3 point of the anal margin. Scm cauliflower-like masses, surface ulcers, partial tissue necrosis, and contact bleeding, biopsy pathology reported as rectal adenocarcinoma. Due to the patient’s past history of “stomach disease”, the patient was allowed to examine the upper digestive tract X-ray barium meal and found that there was a space-occupying lesion in the stomach body. Gastroscopy