The diagnostic feature of congenital diaphragmatic hernia on prenatal ultrasonography is -
Ans. is 'c' ie. Peristalsis in the thoracic cavity " The sonographic diagnosis of fetal CDH relies on the visualisation of abdominal organs in the chest. Other pointers may be absence of a normally positioned stomach, mediastinal displacement, small abdominal circumference and polyhydramnois."
A cyst behind the left atrium
Mediastinal shift with normal hea axis
Peristalsis in the thoracic cavity
Absence of gas bubble under the diaphragm