Prediction and Treatment of Difficult Cases in Colorectal Endoscopic Submucosal Dissection
Figure 4
(a) Superficial tumor 60 mm in diameter with ulcerative colitis. (b) Severe fibrosis was detected in the submucosal layer. (c) Blue layer was seen in severe fibrosis after injection. (d) Recurrent lesion 30 mm in diameter after endoscopic mucosal resection. (e) Severe fibrosis was detected in the submucosal layer. (f) Blue layer was seen in sever fibrosis after injection.
