Partial Oxygen Pressure Affects the Expression of Prognostic Biomarkers HIF-1 Alpha, Ki67, and CK20 in the Microenvironment of Colorectal Cancer Tissue

Figure 2

H&E staining analysis of different-size CRC tissues. The numbers 1, 2, 3, and 4 represent small-size CRC tissues (<300 mm³, ), middle-size CRC tissues (301–600 mm³, ), big-size CRC tissues (601–900 mm³, ), and super-size CRC tissues (>900 mm³, ) under 100x magnification, respectively. Scale bar: 50 μm. The letters A, B, and C represent Finefix, formalin-fixed, and Finefix-plus-microwave-fixed tissues, respectively.