title: Retroperitoneal tumor with vertebral metastasis in a 25-year-old female.
mesh_terms: D000328:Adult; D003460:Crystallization; D003593:Cytoplasm / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D005260:Female; D006056:Golgi Apparatus / Q000648:ultrastructure; D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000648:ultrastructure*; D012509:Sarcoma / Q000556:secondary / Q000648:ultrastructure*; D013125:Spinal Neoplasms / Q000556:secondary* / Q000648:ultrastructure