Fig. 2From: Microsatellite instability screening in colorectal carcinoma: immunohistochemical analysis of MMR proteins in correlation with clinicopathological features and Ki-67 protein expressionImmunohistochemistry for mismatch repair proteins in patient with MSI-L. Tumor cells showing A: intact nuclear expression of MLH1; B: intact nuclear expression of PMS2; C: loss of MSH2 nuclear expression; and D: intact nuclear expression of MSH6 (× 200)Back to article page