| [ Summary ] |
Indications and limitation for endoscopic mucosal resection (EMR) of colorectal neoplasms is discussed. In advance of EMR, careful observation regarding the depth of invasion, shape and size of the neoplasm is essential. As for the depth of invasion, a lesion diagnosed as being m-sm1 is a good candidate for EMR. Tumors up to 20mm in diameter can be resected collectively, but it depends on other factors. In general, depressed type tumors over 10mm may not be resected by using endoscopic therapy. However, in the case of flat elevated type tumors, especially the Ila aggregated type, may be resected endoscopically, even if they are over 20mm in diameter because of the low incidence of sm invasion. But follow-up colonoscopy is necessary because of remnance or recurrence of the tumor after EMR. |