title: Embryonal rhabdomyosarcoma. An ultrastructural study.
mesh_terms: D002648:Child; D006801:Humans; D008207:Lymphatic Metastasis / Q000473:pathology*; D008854:Microscopy, Electron; D009373:Neoplasms, Germ Cell and Embryonal / Q000473:pathology*; D010190:Pancreatic Neoplasms / Q000473:pathology*; D012208:Rhabdomyosarcoma / Q000473:pathology*