PMC6323652_01
Preoperative colonoscopy showing an 18-mm laterally spreading tumor (LST) in the sigmoid colon. Flexion of the colon is severe, making it difficult to resect the LST by endoscopy (white arrow).
amjcaserep-20-1-g001.jpg
PMC6323652_01_amjcaserep-20-1-g001.jpg
f1-amjcaserep-20-1
Preoperative screening colonoscopy revealed an endoluminal tumor with an 18-mm diameter in the sigmoid colon (Figure 1).
Laparoscopic mobilization of the sigmoid colon (white arrow).
amjcaserep-20-1-g002.jpg
PMC6323652_01_amjcaserep-20-1-g002.jpg
f2-amjcaserep-20-1
Adhesion of the small intestine surrounding the sigmoid colon was severe; therefore, we mobilized the sigmoid colon while confirming that the light of the colonoscope passed through the sigmoid colon wall (Figure 2).
Flexion of the sigmoid colon is released, enabling us to visualize the laterally spreading tumor in the front view (white arrow).
amjcaserep-20-1-g003.jpg
PMC6323652_01_amjcaserep-20-1-g003.jpg
f3-amjcaserep-20-1
Flexion of the sigmoid colon was released, enabling us to conduct the EMR for the endoluminal tumor (Figures 3, 4).
Endoscopic mucosal resection of the laterally spreading tumor.
amjcaserep-20-1-g004.jpg
PMC6323652_01_amjcaserep-20-1-g004.jpg
f4-amjcaserep-20-1
Flexion of the sigmoid colon was released, enabling us to conduct the EMR for the endoluminal tumor (Figures 3, 4).