Many new endoscopic techniques have been shown to increase the likelihood of early gastric cancer diagnosis. With improved early gastric cancer detection rates, endoscopic treatment has gained popularity due to advances in existing equipment and the experience of endoscopists. The purpose of this review is to summarize the endoscopic diagnosis and treatment commonly used in early gastric cancer (early gastric cancer).

Endoscopy is the mainstay method for early gastric cancer screening because of its high detection rate, however, diagnostic accuracy is highly dependent on the availability of endoscopic instruments. Many new endoscopic techniques have been shown to increase the likelihood of early gastric cancer diagnosis.