title: Intranasal encephalocele masking as a nasal polyp in an adult patient.
abstract: Intranasal encephaloceles are rarely seen in adult patients. These lesions may be mistaken for nasal polyps. A 36-year-old woman died after the removal of an intranasal encephalocele during a routine polypectomy. The possibility of an intranasal encephalocele must be considered when examining adult patients with nasal polyps.
mesh_terms: D000328:Adult; D003951:Diagnostic Errors; D004677:Encephalocele / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D009298:Nasal Polyps / Q000473:pathology* / Q000601:surgery