Teratoma of the neck.
D003937:Diagnosis, Differential; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011379:Prognosis; D013724:Teratoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery