[A case of benign mediastinal teratoma operated on after eleven years' observation].
D000293:Adolescent; D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D013902:Radiography, Thoracic; D013724:Teratoma / Q000000981:diagnostic imaging* / Q000601:surgery; D013997:Time Factors