Residual gastric cancer

Cancer of gastric remnant is also called gastric cancer after gastric surgery. Because it can occur in the remnant stomach after major gastric resection, but also in the whole stomach after simple gastrointestinal anastomosis, simple perforation repair or vagus nerve cut. It is generally believed that it should be limited to gastric cancer that occurs after surgery for non-cancerous lesions of the stomach. If surgery is performed for malignant disease, it should refer to gastric cancer that has occurred more than 20 years after surgery. Residual gastric cancer accounts for 0.4% to 5.5% of gastric cancer. The incidence of residual gastric cancer is related to the first surgical approach. Patients with type II and simple gastrojejunostomy after subtotal gastrectomy are more likely to develop residual gastric cancer than those with type Ⅰ. Anastomosis is a common site of remnant gastric cancer, but it can also diffuse throughout the remnant stomach.