After partial gastrectomy, patients are still at risk of developing gastric cancer.
In medicine, primary cancer that appears in the remnant stomach more than 5 years after a major gastrectomy for benign disease is known as remnant gastric cancer. The incidence of residual gastric cancer is reported to be about 1%-5%, and the time interval between gastrectomy and residual gastric cancer varies, some up to 40 years or more, but the interval between the occurrence of most residual gastric cancers and major gastrectomy is about 10 to 20 years. The symptoms of residual gastric cancer are often atypical, mainly including feeling of fullness after eating, discomfort or pain in the upper abdomen, nausea, vomiting, vomiting blood, black stool, anemia, weight loss, etc., which are often mistaken by patients as gastrointestinal dysfunction or ulcer recurrence after gastrectomy, thus neglecting the condition. Therefore, it is important not to relax the vigilance of gastric cancer because of gastrectomy. Early diagnosis and treatment are important to improve the outcome of residual gastric cancer.