Immunohistochemical analysis showed that the tumor did not express α-smooth-muscle actin (α-SMA), desmin, myoglobin, human hematopoietic progenitor cell marker (CD34), cytokeratin 19 antibody (AE-1/AE-3), hepatocyte paraffin 1 (HEP-PAR 1), and AFP, but it showed focal expression of Ki-67 (index 35 %) and mostly expressed p53. This evidence concerns the gene AFP and neoplasm.