title: [Frontal sinus osteomas: neuro-ophthalmological complications].
abstract: Osteomas are the most frequent benign tumors of the paranasal sinuses. They often grow in the frontal sinus near the nasofrontal duct. They remain frequently asymptomatic and they tend to be an incidental finding on radiographic studies. Rarely, they extend out of the sinus limits. Two cases with neuro-ophthalmological complications are reported and discussed. A 19-year-old female presented with a progressive left visual impairment and orbital bone deformity. A CT-scan revealed a large calcified mass in both frontal sinuses, with left intraorbital and frontobasal extension. A 21-year-old man suffered from acute frontoethmoidal sinusitis. Radiological exams revealed a right frontal sinus osteoma with bilateral nasofrontal ducts obstruction. The frontal sinus cavities were filled with a large mucocele with intracranial extension. Both patients were successfully treated using frontobasal craniotomy with complete osteoma and mucocele removal and cranio facial bone reconstruction. Neuro-ophthalmological or intrasinusal complications of osteomas lead to radical treatment. CT-scan and MRI analysis for surgical purpose and strategy are emphased.
authors.affiliation: Clinique Neurochirurgicale, Hôpital Nord, Chemin des Bourrely, 13915 Marseille Cedex 20, France.
authors.forename: P
authors.initials: P
authors.lastname: Bourgeois
authors.forename: A
authors.initials: A
authors.lastname: Fichten
authors.forename: E
authors.initials: E
authors.lastname: Louis
authors.forename: C
authors.initials: C
authors.lastname: Vincent
authors.forename: B
authors.initials: B
authors.lastname: Pertuzon
authors.forename: R
authors.initials: R
authors.lastname: Assaker
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D003399:Craniotomy; D005260:Female; D005626:Frontal Sinus; D015522:Frontal Sinusitis / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009078:Mucocele / Q000473:pathology; D019635:Neurosurgical Procedures / Q000379:methods*; D009915:Orbit / Q000000981:diagnostic imaging / Q000473:pathology; D009918:Orbital Neoplasms / Q000556:secondary; D010016:Osteoma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000150:complications* / Q000601:surgery; D014057:Tomography, X-Ray Computed
vernacular_title: Complications neuro-ophtalmologiques des ostéomes des sinus frontaux.