title: The complex nasal dermoid.
abstract: In a series of 74 nasal dermoids, 45 (61%) were of the simple variety involving skin only. Twenty nine (39%) were of the complex variety with deeper tissue involvement requiring more extensive surgery. Of the 29 complex dermoids, 9 (31%) extended to the cribriform plate region but only 3 (10%) of these had an extradural extension. All of the complex nasal dermoids were adequately managed by a transnasal approach. On these findings a preliminary craniotomy should only be considered in exceptional circumstances.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003399:Craniotomy / Q000379:methods; D003884:Dermoid Cyst / Q000175:diagnosis / Q000601:surgery*; D004814:Epidermal Cyst / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000601:surgery; D009669:Nose Neoplasms / Q000175:diagnosis / Q000601:surgery*; D012086:Reoperation; D013724:Teratoma / Q000175:diagnosis / Q000601:surgery*