title: Ultrasonic diagnosis of extrafetal masses.
mesh_terms: D000328:Adult; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006554:Hernia, Umbilical / Q000175:diagnosis* / Q000196:embryology; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012445:Sacrococcygeal Region / Q000196:embryology; D013724:Teratoma / Q000175:diagnosis*; D014463:Ultrasonography