Mismatch repair (MMR) discrepant cases between the two laboratories
| MMR marker | Discrepant case(s) | Leeds result | Cardiff result | Consensus result |
|---|---|---|---|---|
| MLH1 | V007 | Positive | Negative | Positive |
| MSH2 | V007 | Positive | Negative | Positive |
| MSH6 | V007 | Positive | Negative | Positive |
| PMS2 | V007 | Positive | Negative | Positive |
| PMS2 | V442 | Negative | Positive | Negative |
Discrepant cases were so labelled, where a result of the whole section staining for a particular case was generated in both laboratories, but these results differed. One sample (V007) was discrepant for all four proteins, and one other case (V442) gave a discrepant result for PMS2 only.