title: A light microscopic and ultrastructural study of two cases of fibrolamellar hepatocellular carcinoma.
abstract: We describe two cases of fibrolamellar hepatocellular carcinoma of the liver in two young women. Both patients presented with diffuse intra-abdominal metastases; nevertheless they had a survival of 28 and 32 months, respectively, which sustains the better prognosis of this neoplasm. Electron microscopy of one case confirmed the oncocytic features of the neoplastic cells and showed intra- and intercellular duct-like vacuoles with numerous microvilli containing a microfilament core that terminated in a terminal web, which represents an unusual aspect in the spectrum of differentiation of fibrolamellar hepatocellular carcinoma.
mesh_terms: D000293:Adolescent; D000328:Adult; D006528:Carcinoma, Hepatocellular / Q000401:mortality / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000401:mortality / Q000473:pathology* / Q000648:ultrastructure