title: [Frontoethmoidal mucocele with ocular involvement].
abstract: METHODS
  We report a case of a large mucocele occurring in a 64-year-old male. The patient presented with severe proptosis and long standing complete visual loss of the left eye. Computer tomography showed a large cystic mass arising from the left fronto-ethmoidal sinus that invaded the orbit and the anterior cranial fossa. Additional ophthalmologic findings were retinal hemorrhages, optic disc swelling, chorio-retinal folds and a complete afferent pupillary defect of the left eye. Surgical management of the mucocele resolved the proptosis and retinal hemorrhages but the visual loss and the chorio-retinal folds persisted.
  
  
  CONCLUSIONS
  Mucoceles of the periorbital sinus may cause chorio-retinal alterations, optic neuropathy and permanent vision loss.
authors.affiliation: Complejo Hospitalario Universitario de Santiago de Compostela, Servicio de Oftalmología y Departamento de Fisiología, Facultad de Medicina, Universidad de Santiago de Compostela, España. francisco.gonzalez@usc.es
authors.forename: F
authors.initials: F
authors.lastname: González
authors.forename: A
authors.initials: A
authors.lastname: García
authors.forename: A
authors.initials: A
authors.lastname: Prieto
mesh_terms: D005005:Ethmoid Sinus; D005626:Frontal Sinus; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000150:complications*; D010254:Paranasal Sinus Diseases / Q000209:etiology*