Chromosomal instability pathway (APC) | Mismatch repair pathway | Serrated pathway | ||
Hereditary (FAP) and sporadic | Hereditary | Hereditary | Sporadic | |
CIMP status | Negative | Negative | High | High |
MSI status | MSS | MSI-H | MSI-H | MSI-L |
Chromosomal instability | +++ | --- | --- | --- |
KRAS mutation | +++ | +/- | --- | --- |
BRAF mutation | --- | --- | +++ | +++ |
MLH1 status | Normal | Mutation | Methylated | Partial methylation |