case_images: PMC5465755_01
case_images: Endoscopic images. a Local residual adenoma on the scar after incomplete endoscopic piecemeal mucosectomy in the rectum. b Laterally spreading tumor with no lifting sign, previously biopsied with histology positive for adenocarcinoma in situ. c, d Lesions marked with argon plasma coagulation.
case_images: crg-0011-0078-g02.jpg
case_images: PMC5465755_01_crg-0011-0078-g02.jpg
case_images: f2
case_images: On endoscopy, at 5 cm above the dentate line, we observed a 20-mm local recurrent adenoma on the scar of a previous endoscopic mucosal resection of a laterally spreading tumor (pseudo-depressed type) with high-grade dysplasia and a 25-mm laterally spreading tumor (mixed type), with no lifting sign, previously biopsied with histology positive for adenocarcinoma in situ (Fig. 2).
case_images: Endoscopic images showing the target lesion that is grasped and pulled into the cap by the grasping forceps (a); the over-the-scope clip (OTSC) completely closing the full-thickness resection site (b); the rectal full-wall resection specimen (c); the serosal surface macroscopically visible on the specimen (d); two over-the-scope clips (OTSC) completely closing the full-thickness resection site (e); and the rectal full-wall resection specimen (f).
case_images: crg-0011-0078-g03.jpg
case_images: PMC5465755_01_crg-0011-0078-g03.jpg
case_images: f3
case_images: Then, another FTRD was mounted on the tip of the colonoscope (CFQ-145I Olympus) and a second endoscopic full-thickness resection (EFTR) was performed (Fig. 3).