fig4
![Devices, techniques, traction, suturing, and countermeasures for endoscopic submucosal dissection complications](https://image.oaes.cc/d3e12fe0-d331-4459-aa29-e2c71653cafa/4811.fig.4.jpg)
Figure 4. (A) Laterally spreading tumor is present in the transverse colon; (B) the specimen is resected en bloc in 33 min; (C) ulcer scar just after endoscopic submucosal dissection. No muscle injury has been identified; (D) CT scan revealed extraluminal air.