title: The application of electron microscopy to the diagnostic differentiation of Ewing's sarcoma and reticulum cell sarcoma of bone.
mesh_terms: D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002467:Cell Nucleus; D003593:Cytoplasm; D003937:Diagnosis, Differential; D004721:Endoplasmic Reticulum; D006056:Golgi Apparatus; D006570:Heterochromatin; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis* / Q000473:pathology; D008854:Microscopy, Electron; D012512:Sarcoma, Ewing / Q000175:diagnosis* / Q000473:pathology
chemical_list: D006570:Heterochromatin