Interestingly, the CK pattern was associated with patient prognosis, showing patients with CK7−/CK20− tumors had a better survival rate, likely due to the very high rate of MMR-d (71%) within this subgroup, as well as among CK7− SBAs, which were associated with a better survival rate in comparison to CK7+ cancers [25]. This evidence concerns the gene KRT7 and cancer.