As the name implies, esophagus is the pipeline for transporting food. If this pathway of food is blocked, people will suffer a lot if they unfortunately suffer from esophageal cancer, which is a disease that is hard to swallow. Common diseases related to esophageal cancer include chronic esophagitis, esophageal hiatal hernia, benign esophageal stenosis, cardia failure, etc. When discomfort occurs in the esophagus, please seek medical treatment in time for early detection and treatment to control the development of the disease. Early detection of esophageal cancer is cured with one surgery Case introduction, when Wu, a 70-year-old woman (pseudonym), had a gastroscopy during her physical examination, she found that a 6 cm-long mucosa in her esophagus had become rough and occupied 2/3 weeks of her esophagus. Based on years of clinical experience, the doctor judged that this was superficial esophageal cancer. The company’s main business is to provide a wide range of products and services to the market. However, the subsequent biopsy results indicated that the high-grade intraepithelial neoplasia, local cancer, magnification endoscopy and ultrasound endoscopy also indicated that the superficial esophageal cancer (T1a stage), confirming the doctor’s judgment. In the face of the “seal of approval”, Ms. Wu did not dare to be sloppy and cooperated with her doctor for treatment. She underwent endoscopic submucosal debridement in the hospital to remove the diseased mucosal segment of the esophagus intact. Fortunately, due to early detection, she did not need additional radiation or chemotherapy and was cured in a single endoscopic procedure. Surgery for esophageal cancer in middle and late stages is poor Surgery can be a cure for esophageal cancer with early localized lesions, but for patients with esophageal cancer in middle and late stages with distant metastases, it is no longer possible to reach the standard of cure. Pathological stage is the most important prognostic factor for survival of esophageal cancer patients. For patients with stage I esophageal cancer, the overall 5-year survival rate is 80-90% or even more than 90% after surgical resection, while the 5-year survival rate for patients with localized tumor areas reaching advanced stages (stages III and IV) is less than 15%. In addition, aggressive surgical resection is accompanied by severe pulmonary complications and a high morbidity and mortality rate. Those with stage III and IV, locally advanced lesions still have up to a 30% chance of developing pulmonary complications after surgery. Surgery is mostly not used for esophageal cancer patients with poor physical condition in the middle and late stages. What are the indicators of tumor examination after esophageal cancer surgery? 1.Checking anastomosis situation After esophageal cancer surgery, it is necessary to check whether there is narrowing of esophageal opening and whether tumor cells continue to grow. Wound anastomosis examination is a very necessary step among tumor indicators after esophageal cancer surgery. 2.Checking wound healing status After surgery, we need to check the healing status of the surgical incision, and then perform routine blood test and barium meal to check the anastomosis index, and check whether the liver function is damaged. There are many tumor indicators to be checked after esophageal cancer surgery, and this one is essential. 3.Checking tumor indexes Through checking tumor indexes in the body to see whether there is a possibility of tumor recurrence in the body. Generally speaking, the lower the check value is, the lower the possibility of recurrence.