title: Congenital teratoma: four cases.
mesh_terms: D005260:Female; D006258:Head and Neck Neoplasms / Q000151:congenital*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012445:Sacrococcygeal Region; D013724:Teratoma / Q000151:congenital*