title: Suprasellar osteolipoma: case report.
abstract: BACKGROUND
  Osteolipomas are distinguished from other intracranial lipomas by their arrangement of central adipose and peripheral osseous tissues and by characteristically arising in the suprasellar/interpeduncular region.
  
  
  METHODS
  We report computed tomography (CT), magnetic resonance imaging (MRI), and pathology findings from this 34-year-old man who underwent surgical removal of this benign lesion.
  
  
  RESULTS
  This case displays the distinctive histopathology that has been reported in 13 of 31 (42%) lipomas in this region. In contrast, ossification of lipomas at other intracranial sites is relatively rare.
  
  
  CONCLUSIONS
  Ossification should be expected in many suprasellar/interpeduncular lipomas, and osteolipoma should be included in the radiologic differential diagnosis of fat-intensity masses with calcification in this region.
authors.affiliation: Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, USA.
authors.forename: G
authors.initials: G
authors.lastname: Sinson
authors.forename: T A
authors.initials: TA
authors.lastname: Gennarelli
authors.forename: G B
authors.initials: GB
authors.lastname: Wells
mesh_terms: D000328:Adult; D001488:Basilar Artery / Q000473:pathology; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D002114:Calcinosis / Q000473:pathology; D002539:Cerebral Arterial Diseases / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology; D008067:Lipoma / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D012658:Sella Turcica / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed