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| Chromosomes | |
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| Triploidy | |
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| Trisomy 13 | |
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| Trisomy 18 | |
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| Trisomy 21 Down Syndrome | |
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| Turner Syndrome | |
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| Central Nervous System | |
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| Agenesis of the Corpus Callosum (ACC) | |
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| Anencephaly | |
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| Aqueductal Stenosis | |
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| Arachnoid Cyst | |
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| Caudal Aplasia/Dysplasia (Regression) | |
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| Cranial Tumors Other Than Intracranial Teratoma | |
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| Craniosynostosis | |
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| Dandy-Walker Malformations | |
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| Diastematomyelia | |
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| Encephalocele | |
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| Holoprosencephaly | |
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| Hydranencephaly | |
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| Iniencephaly | |
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| Intracranial Hemorrhage | |
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| Intracranial Teratoma | |
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| Microcephaly | |
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| Porencephaly and Schizencephaly | |
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| Spinal Dysraphism (Myelomeningocele, Myeloschisis, Meningocele) | |
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| Vein of Galen Malformation | |
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| Cardiac Entities | |
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| Transposition of the Great Arteries | |
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| Tetralogy of Fallot | |
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| Ebstein's Anomaly | |
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| Tricuspid Valve Atresia | |
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| Critical Valvular Pulmonary Stenosis and Pulmonary Atresia | |
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| Critical Valvular Aortic Stenosis | |
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| Hypoplastic Left Heart Syndrome | |
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| Aortic Coarctation | |
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| Ventricular Septal Defect | |
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| Atrioventricular Canal Defects (Endocardial Cushion Defect) | |
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| Truncus Arteriosus | |
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| Double-Inlet Ventricle | |
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| Double-Outlet Right Ventricle | |
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| Cardiac Arrhythmias: Tachycardia and Extrasystoles | |
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| Cardiac Arrhythmias: Bradycardia (Including Blocked Premature Beats) | |
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| Hypertrophic Cardiomyopathy | |
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| Heterotaxy Syndrome (Asplenia and Polysplenia) | |
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| Ectopia Cordis, Pentalogy of Cantrell | |
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| The Genitourinary System | |
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| Adrenal Hematoma | |
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| Exstrophy of the Bladder | |
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| Cloacal Exstrophy | |
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| Hydronephrosis (Ureteropelvic Junction, Obstruction and Reflux) | |
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| Hydrocolpos, Hydrometrocolpos | |
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| Autosomal Recessive Polycystic Kidney Disease (Infantile Polycystic Kidney Disease) | |
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| Mesoblastic Nephroma | |
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| Multicystic (Dysplastic) Kidney | |
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| Neuroblastoma | |
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| Ovarian Cysts | |
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| Posterior Urethral Valves (PUV) | |
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| Renal Agenesis | |
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| Sacrococcygeal Teratoma | |
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| Sirenomelia | |
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| Ureterocele | |
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| The Chest | |
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| Cystic Adenomatoid Malformation of the Lung | |
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| Diaphragmatic Hernia | |
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| Esophageal Atresia, Tracheal Atresia, Tracheoesophageal Fistula | |
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| Pleural Effusion (Fetal Hydrothorax) | |
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| Pulmonary Sequestration | |
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| Tracheal/Laryngeal Atresia or CHAOS (Congenital High Airway Obstruction Syndrome) | |
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| The Gastrointestinal System | |
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| Anal Atresia (Imperforate Anus, Anorectal Malformation) | |
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| Duodenal Atresia | |
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| Gastrointestinal Atresia or Stenosis | |
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| Gastroschisis | |
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| Hepatic Tumors | |
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| Meconium Cyst (Meconium Peritonitis) | |
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| Meconium Ileus | |
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| Omphalocele | |
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| Neck and Face | |
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| Cleft Lip and Palate | |
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| Cystic Hygroma | |
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| Facial Asymmetry (Goldenhar's Syndrome) (Hemifacial Microsomia; Oculoauriculo-vertebral Dysplasia) | |
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| Pierre Robin Sequence | |
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| Thyroid Enlargement/Goiter | |
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| Treacher Collins Syndrome (Mandibulofacial Dysostosis) | |
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| Skeletal Abnormalities | |
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| Achondrogenesis | |
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| Achondroplasia | |
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| Amniotic Band Syndrome | |
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| Arthrogryposis | |
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| Camptomelic Dysplasia | |
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| Club and Rocker-Bottom Feet (Vertical Talus) | |
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| Diastrophic Dysplasia | |
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| Focal Femoral Hypoplasia | |
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| Jeune's Thoracic Dystropy (Asphyxiating Thoracic Dystrophy) | |
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| Klippel-Trenaunay-Weber (KTW) Syndrome | |
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| Limb-Body Wall Complex (Body Stalk Complex, Cyllosoma) | |
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| Multiple Pterygium Syndrome | |
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| Osteogenesis lmperfecta | |
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| Polydactyly | |
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| Radial Ray Problems; Radial Ray Aplasia/Hypoplasia | |
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| Thanatophoric Dwarfism (Dysplasia) | |
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| Infections | |
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| Cytomegalic Inclusion Disease | |
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| Parvovirus (Fifth Disease) | |
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| Congenital Syphilis | |
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| Toxoplasmosis | |
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| Varicella Infection (Varicella-Zoster Virus) | |
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| Drugs | |
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| Fetal Alcohol Syndrome | |
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| Anti-Seizure Drugs (Phenytoin, Carbamazepine, Valproic Acid, and Phenobarbital) | |
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| Illegal Drugs (Cocaine, Heroin) | |
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| Syndromes | |
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| Beckwith-Wiedemann Syndrome | |
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| Deletion 22q11.2 Syndrome (Digeorge Syndrome, Velocardiofacial Syndrome, Shprintzen Syndrome) | |
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| Fryns Syndrome | |
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| Meckel-Gruber Syndrome (Dysencephalia Splanchnocystica) | |
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| Pena-Shokeir Phenotype (Fetal Akinesia/Hypokinesia Sequence) | |
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| Smith-Lemli-Opitz Syndrome | |
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| Tuberous Sclerosis | |
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| VACTERL Association | |
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| Twins | |
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| Intrauterine Growth Restriction or Retardation (Iugr) in Twins | |
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| Acardiac Twin (Acardiac Monster; Holoacardius) Twin Reversed, Arterial Perfusion Sequence | |
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| Conjoined Twins | |
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| Monoamniotic, Monochorionic Twins | |
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| Stuck Twin | |
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| Twin-to-Twin Transfusion (Ttts) | |
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| Miscellaneous Abnormalities | |
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| Chorioangioma | |
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| Nonimmune Hydrops Fetalis | |
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| Rhesus Incompatibility (Red Blood Cell Alloimmunization) | |
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| Abnormal Sonographic Findings | |
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| Amniotic Membranes | |
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| Cord Cyst | |
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| Intrauterine Growth Restriction (Iugr) | |
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| Macrosomia | |
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| Oligohydramnios | |
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| Polyhydramnios | |
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| Appendices | |
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| Differential Diagnoses of Abnormal in Utero Sonographic Findings | |
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| Sonographic Features of Less Common Fetal Abnormalities | |
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| Index | |