Figure 1

Immunohistochemical staining demonstrating loss of PMS2 expression (a) in a colorectal carcinoma with intact expression of MLH1 (b), MSH2 (c), and MSH6 (d) ( × 200).
Immunohistochemical staining demonstrating loss of PMS2 expression (a) in a colorectal carcinoma with intact expression of MLH1 (b), MSH2 (c), and MSH6 (d) ( × 200).