biopsy fragments of fibroconjunctive tissue with tumor proliferation composed of round cells, pale eosinophilic or clear cytoplasm, central nucleus, small in size, normochromic; tumor cells are arranged in nests, cords, trabeculae; some cells contain brown pigment; very low mitotic rate.glypican+; OCH1E5+; INI-1+ in tumor cell nuclei; αFP−; β Catenin + membrane and cytoplasmic; Ki67+ 10% in tumor cells.Proposed diagnosis: well-differentiated fetal epithelial subtype hepatoblastoma. The gene discussed is GPC1; the disease is neoplasm.