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![Tips for difficult colorectal endoscopic submucosal dissection](https://image.oaes.cc/1f8f0a57-6846-45ac-afa9-9a17e8b6d480/4715.fig.2.jpg)
Figure 2. Tapping for severe fibrosis: (A) severe fibrosis with MR sign; (B, C) the border between the transverse myofiber bundle and the longitudinal submucosal fibers was precisely dissected using the “Migaki” tapping technique; and (D) after dissecting the severe fibrotic area. MR: Muscle retracting.