title: Extranasopharyngeal angiofibromas. (Sex incidence and age distribution).
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000453:epidemiology / Q000473:pathology*; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000453:epidemiology; D012737:Sex Factors; D014067:Tonsillar Neoplasms / Q000473:pathology*