title: Ultrastructural studies in a case of hepatoblastoma.
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000648:ultrastructure*; D002675:Child, Preschool; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D004848:Epithelium / Q000473:pathology; D006056:Golgi Apparatus / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008930:Mitochondria, Liver / Q000648:ultrastructure