Project description:Video 1We performed endoscopic submucosal dissection with the patient under conscious sedation. After making markings around the lesion, we incised the mucosa from the oral side of the ampullary lesion and dissected the submucosal layer using a Clutch Cutter. We created 2 submucosal tunnels to identify the dissection line of the ampulla. After completion of the tunnels, we performed a mucosal incision circumferentially and dissected the submucosal layer except the ampulla. Subsequently, we removed the ampulla directly above the muscle layer of the duodenum using the Clutch Cutter. En bloc resection was achieved. After resecting the lesion, a biliary stent and pancreatic stent were placed into the common bile duct and pancreatic duct, respectively. Prophylactic closure of the mucosal defect was performed using endoclips and a polyglycolic acid sheet with fibrin glue to prevent delayed perforation and bleeding.

| S-EPMC8819520 | biostudies-literature

Traction-assisted endoscopic submucosal dissection for a previously tattooed colonic laterally spreading tumor.

Project description:Video 1Traction-assisted colorectal endoscopic submucosal dissection using the multiloop method for a previously tattooed laterally spreading tumor in the sigmoid colon.

| S-EPMC8270785 | biostudies-literature

Single tunneling technique for treatment of giant laterally spreading tumor with endoscopic submucosal dissection.

Project description: Not available

| S-EPMC5990989 | biostudies-literature

Pulley traction-assisted endoscopic submucosal dissection with hemostatic forceps for a laterally spreading tumor in the ascending colon.

Project description: Not available

| S-EPMC7729845 | biostudies-literature

Endoscopic submucosal dissection for a laterally spreading tumor involving the colon diverticulum using a knife with water supply function.

Project description: Not available

| S-EPMC7221287 | biostudies-literature

Hybrid resection with endoscopic submucosal dissection and full-thickness resection device of a large cecal laterally spreading tumor involving the appendix.

Project description: Not available