ObjectiveTo summarize the current advancement of adenocarcinoma of the esophagogastric junction (AEG) and improve the knowledge and cognition about AEG and find a feasible treatment strategy.Method Relevant literatures about current advancement of AEG published domestically and abroad recently were collected and reviewed. Results AEG had obvious differences from other parts of stomach tumors in anatomy, physiology, and pathology. The study of AEG in definition, biology origin, classification, lymph node metastasis and other aspects had basically reached a consensus. But for the surgical approach, the extent of resection, lymph node dissection or the way of the digestive tract reconstruction was controversial for a long time. Conclusions AEG as a kind of independent disease is increasing hazard to human health．By far, the most effective treatment is surgical resection, and how to choose the surgical method needs to be further researched.
Objective To summarize the research progress of the adenocarcinoma of esophago-gastric junction (AEG) in recent years, in order to improve the further understanding of this disease. Method The literatures about application and research progress of AEG were researched and reviewed. Results Siewert classification was a widely recognized classification for AEG, according to this classification, AEG was divided into typeⅠ, Ⅱ, and Ⅲ. Gastroesophageal reflux, Barrett’ sesophagus, and the infection of Helicobacter pylori may be the important pathogenic factors. For SiewertⅠAEG, thoracic approach was preferred commonly, and for SiewertⅡand Ⅲ AEG, total gastrectomy through abdominal approach and distal partial resection of esophagus through diaphragmatic hiatus approach were recommended. Endoscopic submucosal resection, neoadjuvant therapy, targeted therapy, and multidisciplinary team were becoming more and more important in the treatment of AEG. Conclusions The choice of surgical method and resection range should according to the types of AEG. Comprehensive assessment and comprehensive treatment would be performed, so that effect of treatment may be improved.