Hormone receptors in hepatoblastoma: a demonstration of both estrogen and progesterone receptors.
A case of mixed hepatoblastoma occurring in a four-year-old girl is described. Light and electron micrographs illustrate a predominant mesenchymal component and a less conspicuous epithelial element. The tumor contained specific cytosolic protein receptors for estrogen and progesterone. The estrogen receptor titer was 10.5 fmol/mg cytosol protein and the progesterone receptor titer was 62.2 fmol/mg cytosol protein.
D006528:Carcinoma, Hepatocellular / Q000378:metabolism* / Q000473:pathology; D002675:Child, Preschool; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D008113:Liver Neoplasms / Q000378:metabolism* / Q000473:pathology; D008854:Microscopy, Electron; D011960:Receptors, Estrogen / Q000032:analysis*; D011980:Receptors, Progesterone / Q000032:analysis*
D011960:Receptors, Estrogen; D011980:Receptors, Progesterone