CDX2 and Neoplasm of the liver: The expression of other diagnostic markers for primary [glypican 3 (GPC3), glutamine synthetase (GS), arginase 1, hepatocyte paraffin 1 antigen (Hep Par-1)] and secondary [caudal-type homeobox 2 (CDX2), special AT-rich sequence-binding protein 2 (SATB2)] liver tumors has not been explored by immunohistochemistry.