Application of blunt dissection in ESD of a gastric submucosal tumor.

We performed endoscopic submucosal dissection of a gastric fundus tumor. It was difficult to strip the tumor completely due to space limitation, and we used blunt dissection to remove the tumor quickly and safely. Firstly, the basal area of the 2.5 cm submucosal tumor located in the gastric fundus was cut open, and the mucosa was dissected. The tumor was difficult to peel, therefore, a snare was used and the tumor was pulled and tightened slightly. Short electronic coagulation was used during the procedure. The tumor was then bluntly dissected. This method ensured rapid and complete removal of the tumor.