Thymic cysts of the mediastunum.
D003560:Cysts / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D006801:Humans; D008476:Mediastinal Cyst / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D009333:Neck; D013950:Thymus Gland / Q000196:embryology