title: Large intracranial intradural mucocele as a complication of frontal sinus osteoma.
abstract: Paranasal sinus osteomas are mostly asymptomatic; however, secondary mucocele can develop if they impede the natural sinus drainage. Such a mucocele can destroy the bone and extend into the adjacent structures. We report on an unusual case of frontal sinus osteoma in a 27-year-old patient, complicated by large secondary mucocele that eroded the bone and extended into the frontal lobe of the brain. Unexpectedly, the patient did not report any visual or other symptoms attributable to central nervous system deficit. The mucocele was completely resected through bifrontobasal osteoplastic craniotomy, whereas osteoma was evacuated in its entirety by both drilling and mobilizing. Open surgical approach remains the main treatment for complicated paranasal sinus osteoma, and radical removal of intracranial mucocele is mandatory to prevent the development of life-threatening infections. Although intradural extension of a secondary mucocele is extremely unusual, head and neck surgery specialists should take this severe complication in consideration.
authors.affiliation: University Department of Head & Neck Surgery, Zagreb University Hospital Center, HR-10000 Zagreb, Croatia.
authors.forename: Martin
authors.initials: M
authors.lastname: Jurlina
authors.forename: Sasa
authors.initials: S
authors.lastname: Janjanin
authors.forename: Ante
authors.initials: A
authors.lastname: Melada
authors.forename: Ratko
authors.initials: R
authors.lastname: Prstacić
authors.forename: Anamarija Simuncić
authors.initials: AS
authors.lastname: Veselić
mesh_terms: D000328:Adult; D003287:Contrast Media; D003399:Craniotomy / Q000379:methods; D004388:Dura Mater / Q000473:pathology* / Q000601:surgery; D005260:Female; D005626:Frontal Sinus / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D009078:Mucocele / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D010016:Osteoma / Q000150:complications* / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000150:complications* / Q000601:surgery; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media