Juvenile nasopharyngeal fibroma.
D000293:Adolescent; D000328:Adult; D002648:Child; D005350:Fibroma / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*