title: Bilateral papilledema from a massive intracranial epidermoid cyst.
abstract: OBJECTIVE
  To report an unusual case of bilateral papilledema from a large intracranial epidermoid cyst.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  A 26-year-old man presented with visual loss, bilateral papilledema, and only a few neurological symptoms. Magnetic resonance imaging disclosed such a large lesion that his right cerebral hemisphere was compressed to one half its normal size. Histopathologic examination of the completely removed tumor revealed an epidermoid cyst.
  
  
  CONCLUSIONS
  This unique case involved a patient with bilateral papilledema caused by a huge intracranial epidermoid cyst. Epidermoid tumors should be considered in the differential diagnosis of papilledema.
authors.affiliation: Cantonal Eye Hospital, Lucerne, Switzerland. peter.maloca@freesurf.ch
authors.forename: P
authors.initials: P
authors.lastname: Maloca
authors.forename: W
authors.initials: W
authors.lastname: Arnold
authors.forename: O
authors.initials: O
authors.lastname: Job
authors.forename: I
authors.initials: I
authors.lastname: Schipper
mesh_terms: D000328:Adult; D001921:Brain / Q000473:pathology / Q000601:surgery; D001932:Brain Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D005654:Fundus Oculi; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010211:Papilledema / Q000175:diagnosis / Q000209:etiology*