MicroRNA-31 expression in colorectal serrated pathway progression

Figure 1 Endoscopic findings in our case. A: Colonoscopic view showing a 7-mm flat-elevated lesion in the cecum; B: Chromocolonoscopic view (indigo carmine dye) showing a central depression in the lesion; C: Magnifying narrow-band imaging of the depressed area showing winding and prematurely terminating irregular blood vessels and sparse surface patterns.

Figure 2 Histopathological findings in our case. Histopathological findings from a representative lesion showing the HP component (blue box) and carcinoma component (yellowish-green box). The tissue specimens were obtained from the respective components, after which molecular analyses were performed. HP: Hyperplastic polyp; miR-31: MicroRNA-31; MSI: Microsatellite instability; MSS: Microsatellite stable.