title: Unusual morphologic features of a primary liver neoplasm.
abstract: Light and electron microscopy study of an unusual primary liver neoplasm observed in a 36-year-old woman. By light microscopy the tumor, initially detected by a needle biopsy and later surgically removed, was mainly composed of spindle-shaped and multinucleated cells which were similar to rhabdomyoblasts. These cells, however, showed ultrastructural features of hepatocytes.
mesh_terms: D000328:Adult; D006528:Carcinoma, Hepatocellular / Q000648:ultrastructure*; D002467:Cell Nucleus / Q000648:ultrastructure; D003937:Diagnosis, Differential; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005260:Female; D006056:Golgi Apparatus / Q000648:ultrastructure; D006801:Humans; D008113:Liver Neoplasms / Q000648:ultrastructure*; D008247:Lysosomes / Q000648:ultrastructure; D008854:Microscopy, Electron; D009373:Neoplasms, Germ Cell and Embryonal / Q000648:ultrastructure*; D012208:Rhabdomyosarcoma / Q000648:ultrastructure*