What is the most frequent cause of oligohydramnios?

What is the main feature of Potter syndrome?

A fetus who presents with anal atresia, ventricular septal defects and a renal anomaly is likely to have:

The presence of a kidney in an unexpected location is called:

If polyhydramnios is demonstrated on fetal ultrasound, what gastrointestinal abnormalities are most likely?

Atresia of the cecum is the most common type of colonic atresia that will lead to a bowel obstruction.

What is the likely diagnosis if echogenic foci are seen in the right abdomen that produce acoustic shadowing?

What gestational age should abdominal wall defects be visualized?

If esophageal atresia is diagnosed, what tracheal abnormality may also be present?

Which of the following disorders results from persistent bladder outlet obstruction?