病例1,女性,55岁,住院号21865,因上腹部隐痛,食欲减退半年,1996年12月23日行纤维胃镜检查诊断为胃体部癌而入院。否认大便规律改变及脓血便等病史。于1997年1月8日在硬膜外麻醉下行剖腹探查术,术中见符合Ⅳ期胃癌(按TNM分期)改变:于乙状结肠中部发现2×3cm肿物、硬韧、已侵出浆膜,肿物旁淋巴结肿大,术中诊断为乙状结肠 Case 1, female, 55 years old, hospital number 21865, due to upper abdominal pain, loss of appetite for six months, on December 23, 1996 line of gastroscopy diagnosis of gastric cancer and admission. Denies changes in bowel movements and history of pus and bloody stools. On January 8, 1997, laparotomy was performed under epidural anesthesia. During the operation, the stage IV gastric cancer (according to TNM staging) was changed: a 2×3cm tumor was found in the middle of the sigmoid colon, which was hard and tough and had invaded the serosa. Paraneoplastic lymph nodes, intraoperative diagnosis of sigmoid colon