“Trans-tattoo in immersion” method for the removal of a recurrent, previously tattooed adenoma using endoscopic submucosal hydrodissection

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

“…In the current case, histopathologic examination did not show severe fibrosis, unlike in previous reports. [1][2][3][4] This suggested that fibrosis may not have significantly affected the procedure in our case. However, we were unable to confirm the depth of dissection planes at the pigmented site because black discoloration caused by tattooing extended to just above the muscularis propria.…”

“…Endoscopic tattooing is widely performed for preoperative marking; however, colorectal endoscopic submucosal dissection (ESD) after tattooing is challenging because of the dark endoscopic visual field and severe fibrosis at the submucosa. [1][2][3][4] Previous studies have demonstrated the efficacy of the traction method in colorectal ESD. 5,6 Moreover, recent reports have described traction-assisted ESD for technically challenging colorectal cases, such as those involving the appendiceal orifice or diverticulum.…”

A new T-type electrosurgical knife with waterjet function used in probe mode: a safe technical variant for colorectal endoscopic submucosal dissection

“…The water-jet hydrodissection technique is an effective method for colorectal endoscopic submucosal dissection (ESD) 1 , even during the technique learning curve 2 . The use of the T-type HybridKnife in “probe mode” can facilitate ESD 3 , even in complex situations 4 5 . The design of the new HybridKnife Flex ( Fig.…”

Serosal‐exposure sign during colonic endoscopic submucosal dissection of a recurrent polyp in ascending colon scar

“…Salvage treatment for any lesions following the failure of previous endoscopic mucosal resection is perhaps one of the most challenging scenarios encountered in the endoscopic management of colorectal lesions 1,2 . Saline immersion is recommended during endoscopic submucosal dissection (ESD) in situations of severe fibrosis 3,4 . ESD by hydrodissection is an effective treatment for complex polyps 5 .…”