KRT7 and cholangiocarcinoma: Posttransplant surgical pathology of the native liver explant revealed a minimal focus (0.5 cm) of residual HCC at the previous chemoembolization site, as well as another 2.5 cm adenocarcinoma in the perihilar region of the liver, which was suggestive by morphologic appearance and immunophenotypic profiling (positive for CK7, CK20, and mCEA) to be consistent with a mixed HCC/cholangiocarcinoma.