1.1.1 Ventriculomegaly
1.1.2 Agenesis of the corpus callosum
1.1.3 Abnormalities of the cavum of the septum pellucidum
1.1.4 Holoprosencephaly
1.1.5 Posterior fossa anomalies
1.1.6 Cerebral cortical malformations or migrational anomalies
1.1.7 Solid or cystic masses
1.1.8 Cephalocele
1.2.1 Vascular anomalies
1.2.2 Hydranenecephaly
1.2.3 Stroke/infarctions
1.2.4 Hemorrhage
1.2.5 Monochorionic twin pregnancy complications
1.3.1 Neural tube defects
1.3.2 Sacrococcygeal teratomas
1.3.3 Caudal regression/sacral agenesis
1.3.4 Sirenomelia
1.3.5 Vertebral anomalies
2.1.1 Vascular or lymphatic anomalies
2.1.2 Goiter
2.1.3 Teratomas
2.1.4 Facial clefts
3.1.1 Congenital lung malformations (including pulmonary airway malformations, bronchogenic cyst, sequestration, congenital lobar overinflation)
3.1.2 Congenital diaphragmatic hernia
3.1.3 Effusions
3.1.4 Mediastinal masses
3.1.5 Esophageal atresia
4.1.1 Determining the etiology of an abdominal-pelvic cyst
4.1.2 Assessing the size and location of tumors such as hemangiomas, neuroblastomas, sacrococcygeal teratomas, and suprarenal or renal masses
4.1.3 Assessing complex genitourinary anomalies, such as bladder exstrophy, cloacal malformation or exstrophy, or complex lower urinary tract obstruction such as prune belly syndrome
4.1.4 Assessing renal anomalies in cases of severe oligohydramnios
4.1.5 Diagnosing bowel anomalies such as anorectal malformations, or complex bowel obstructions such as with megacystis microcolon hypoperistalsis syndrome
5 Complications of monochorionic twins suspected or not adequately addressed by sonography
6.1 Meningomelocele
6.2 Sacrococcygeal teratomas
6.3 Process obstructing the airway
6.4 Complications of monchorionic twins needing surgery
6.5 Chest masses