title: Transarterial Onyx embolization of sacral chordoma: case report and review of the literature.
abstract: OBJECTIVE
  To report a successful transarterial Onyx embolization of a highly vascularized sacral chordoma.
  
  
  METHODS
  A 74-year-old patient presented with progressive lower back pain and anorectal and urogenital dysfunction complicated by excessive intraoperative blood loss requiring emergent endovascular intervention.
  
  
  METHODS
  Emergent pelvic angiography demonstrated a highly vascularized sacral chordoma. Transarterial embolization with Onyx was performed successfully via a single arterial pedicle, the median sacral artery. Surgical extirpation was achieved with the expected amount of intraoperative blood loss without further complications.
  
  
  CONCLUSIONS
  Preoperative transarterial Onyx embolization can be performed safely and effectively to assist in the surgical resection of sacral chordomas.
authors: Barrow Neurological Institute, Phoenix, Arizona, USA.
authors: Yin C
authors: YC
authors: Hu
authors: C Benjamin
authors: CB
authors: Newman
authors: Randall W
authors: RW
authors: Porter
authors: Felipe C
authors: FC
authors: Albuquerque
mesh_terms: D000368:Aged; D002817:Chordoma / Q000098:blood supply / Q000000981:diagnostic imaging / Q000601:surgery*; D004121:Dimethyl Sulfoxide / Q000627:therapeutic use*; D004621:Embolization, Therapeutic / Q000379:methods*; D057510:Endovascular Procedures / Q000379:methods*; D006801:Humans; D019635:Neurosurgical Procedures / Q000379:methods; D011145:Polyvinyls / Q000627:therapeutic use*; D011300:Preoperative Care / Q000379:methods; D011859:Radiography; D012447:Sacrum / Q000098:blood supply / Q000473:pathology / Q000601:surgery*; D013125:Spinal Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging / Q000601:surgery*
chemical_list: C450660:Onyx copolymer; D011145:Polyvinyls; D004121:Dimethyl Sulfoxide