title: [Compressive optic neuropathy secondary to a pituitary macroadenoma].
abstract: BACKGROUND
  Pituitary adenoma is a common benign tumor representing 8 to 10% of intracranial mass lesions. The compressive optic neuropathy associated with a pituitary adenoma can be clinically indistinguishable from glaucomatous optic neuropathy.
  
  
  METHODS
  A 56-year-old man with no significant past medical history had noticed a rapid decrease in visual acuity for 6 months. Funduscopic examination revealed glaucoma-like bilateral, asymmetric optic cupping. Brain MRI examination revealed a pituitary tumor compressing the optic chiasm.
  
  
  CONCLUSIONS
  The diagnosis of a compressive optic neuropathy associated with a pituitary adenoma can be difficult, since it often simulates chronic glaucoma. However, several features should alert the clinician to the possibility of a compressive optic neuropathy and prompt neuroimaging, in order to obtain earlier diagnosis and treatment.
authors.affiliation: Service d'ophtalmologie, faculté de médecine de Tunis, université de Tunis El Manar, CHU Habib Thameur, 8, rue Ali Ben Ayed Montfleury, 1008 Tunis, Tunisie. moniacheour@yahoo.fr
authors.forename: M
authors.initials: M
authors.lastname: Cheour
authors.forename: H
authors.initials: H
authors.lastname: Mazlout
authors.forename: S
authors.initials: S
authors.lastname: Agrebi
authors.forename: Y
authors.initials: Y
authors.lastname: Falfoul
authors.forename: I
authors.initials: I
authors.lastname: Chakroun
authors.forename: H
authors.initials: H
authors.lastname: Lajmi
authors.forename: A
authors.initials: A
authors.lastname: Kraiem
mesh_terms: D000236:Adenoma / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000150:complications / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D009901:Optic Nerve Diseases / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D010911:Pituitary Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D047368:Tumor Burden