Juvenile nasopharyngeal angiofibromas.
D000293:Adolescent; D002648:Child; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology / Q000601:surgery; D049672:History, 19th Century; D049690:History, Ancient; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000473:pathology / Q000601:surgery