Tracheobronchial Anomalies
Some cases develop polyhydramnios and invisible stomach.
Esophageal atresia: Cystic lesion is usually identified
in the upper mediastinum.
Lung echogenesity may increase in complete and severe obstruction
of the airway (laryngeal atresia, tracheal atresia).
Differential diagnosis should be required from CCAM (type III) etc.
L/T and C/T ratio may also increase in complete and severe obstruction
of the airway (laryngeal atresia, tracheal atresia).
tracheal atresia (agenesis)
Some cases are accompanied by unilateral pulmonary hypoplasia/aplasia
which is diagnosed by the mediastinal shift and the decrease
in C/T ratio.
Bronchopulmonary Anomalies
Program for Prenatal Diagnosis
Pediatric SurgeryAOsaka University