title: Fibrous dysplasia involving the skull base and temporal bone.
abstract: OBJECTIVE
  To gain a broader appreciation of the clinical presentation, operative treatment, and outcome of patients with fibrous dysplasia involving the skull base.
  
  
  METHODS
  Retrospective review of a clinical case series.
  
  
  METHODS
  A single tertiary academic medical center.
  
  
  METHODS
  Twenty-one patients with histopathologically confirmed fibrous dysplasia involving the skull base cared for over a 15-year-period (1983-1998).
  
  
  METHODS
  Clinical and radiographic location of the fibrous dysplasia lesions within the skull base, clinical presentation, surgical intervention, and clinical outcome were tabulated for each patient.
  
  
  RESULTS
  The ethmoids were most commonly involved (71%), followed by the sphenoid (43%), frontal (33%), maxilla (29%), temporal (24%), parietal (14%), and occipital (5%) bones. The most common presenting features included atypical facial pain and headache, complaints referable to the sinuses, proptosis and diplopia, hearing loss, and facial numbness. Surgical treatment, guided by clinical presentation, ranged from simple biopsy with conservative follow-up to craniofacial resection.
  
  
  CONCLUSIONS
  Fibrous dysplasia can present in myriad ways within the skull base. Modern imaging modalities and histopathologic analysis have made diagnosis relatively straightforward. Surgery, particularly in such a challenging region as the skull base, should be reserved for patients with functional impairment or a cosmetic deformity. Because of the benign nature of the condition, the surgery itself should be relatively conservative, with the primary goal being preservation of existing function.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University, JHOC Sixth Floor, 601 N Caroline St, Baltimore, MD 21287-0910, USA. llustig@bme.jhu.edu
authors.forename: L R
authors.initials: LR
authors.lastname: Lustig
authors.forename: M J
authors.initials: MJ
authors.lastname: Holliday
authors.forename: E F
authors.initials: EF
authors.lastname: McCarthy
authors.forename: G T
authors.initials: GT
authors.lastname: Nager
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005357:Fibrous Dysplasia of Bone / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D005624:Frontal Bone; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D009777:Occipital Bone; D010294:Parietal Bone; D012189:Retrospective Studies; D019291:Skull Base; D013100:Sphenoid Bone; D013701:Temporal Bone; D014057:Tomography, X-Ray Computed