Sigmoid colon endometriosis treated with laparoscopy-assisted sigmoidectomy: Significance of preoperative diagnosis

Figure 1 Barium enema shows sigmoidal stenosis with smooth inner lumen.

Figure 2 EUS shows iso to high echoic submucosal tumor in the 3rd echoic layer.

Figure 3 MRI (T2 weighted image) shows a sigmoidal tumor lesion with low signal intensity.

Figure 4 Gross examination of the resected specimen.

Figure 5 Tumor comprising endometrial-like grands and smooth muscle cells (× 200).