title: Ultrastructure of a sacrococcygeal chordoma.
mesh_terms: D002466:Cell Nucleolus; D002467:Cell Nucleus; D002817:Chordoma / Q000473:pathology*; D004721:Endoplasmic Reticulum; D005110:Extracellular Space; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D012445:Sacrococcygeal Region / Q000473:pathology*