Epistaxis in a teen-age boy.
D000293:Adolescent; D000367:Age Factors; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D003452:Cryosurgery; D003937:Diagnosis, Differential; D004844:Epistaxis / Q000209:etiology*; D018219:Histiocytoma, Benign Fibrous / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000532:radiotherapy / Q000601:surgery; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging; D011859:Radiography; D013997:Time Factors