Fig. 4From: XPF expression and its relationship with the risk and prognosis of colorectal cancerRepresentative photomicrographs of immunohistochemical staining of XPF in different phase of colorectal diseases. a Low nuclear expression of XPF in anal disease. b Middle nuclear expression of XPF in adenoma tissue. c High nuclear expression in CRC. Showing the dynamic expression in colorectal diseases. Original magnification, × 200Back to article page