Fig. 3From: Molecular genetics of microsatellite-unstable colorectal cancer for pathologistsImmunohistochemistry for mismatch repair proteins in a patient with Lynch syndrome. H&E stain of the mucinous adenocarcinoma (a). Intact nuclear expression of MLH1 (b) and PMS2 (c). Intact nuclear expression of MSH2 (d). This tumor showed absent nuclear staining of MSH6 (e). Genetic sequencing confirmed mutation of the MSH6 geneBack to article page