Size does not determine the grade of malignancy of early invasive colorectal cancer

Figure 1 The lesion was located in the transverse colon. Endoscopic examination revealed a flat, elevated lesion with a central depression, which was macroscopically diagnosed as 0-IIa+IIc. The high-magnification view revealed a typical type VI pit (invasive) pattern on the depressed margin. The final endoscopic diagnosis was a 0-IIa+IIc type early colon cancer with submucosal deep invasion. However, patient strongly hoped EMR as an initial treatment. We performed EMR after injecting normal saline into the submucosa.