title: Solitary spinal extradural plasmacytoma: MR imaging findings in seven cases.
abstract: OBJECTIVE
  The aim of this study was to retrospectively review the magnetic resonance (MR) imaging presentation of solitary spinal extradural plasmacytoma (SSEP), which originates from the dura and extends into the extradural space.
  
  
  METHODS
  MR imaging features of seven patients with SSEP were analyzed.
  
  
  RESULTS
  All the tumors were spindle shaped, well defined, and located in the extradural dorsal spinal canal. Most lesions occurred in the thoracic regions with homogeneous enhancement. No bone erosion or exophytic paraspinal mass was noted.
  
  
  CONCLUSIONS
  SSEP should be considered if a well-circumscribed mass has homogeneous enhancement without bone erosion in the dorsal spinal canal.
authors.affiliation: Department of Neurosurgery, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Wu
authors.affiliation: Department of Neurosurgery, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yang
authors.affiliation: Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Deng
authors.affiliation: Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Chenlong
authors.initials: C
authors.lastname: Yang
authors.affiliation: Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.
authors.forename: Jingyi
authors.initials: J
authors.lastname: Fang
authors.affiliation: Department of Neurosurgery, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. Electronic address: xuhuxi@sina.cn.
authors.forename: Yulun
authors.initials: Y
authors.lastname: Xu
mesh_terms: D000328:Adult; D004388:Dura Mater / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D010954:Plasmacytoma / Q000473:pathology*; D012189:Retrospective Studies; D013125:Spinal Neoplasms / Q000473:pathology*; D035441:Thoracic Wall / Q000473:pathology; D055815:Young Adult
keywords: Extradural neoplasms; Magnetic resonance imaging; Plasmacytoma; Spinal tumor