# A new sonographic marker in the diagnosis of prenatal bilateral renal agenesis, segmental anterior deviation of the aorta

## TL;DR

This paper reports a new ultrasound marker for prenatal diagnosis of bilateral renal agenesis, involving a segmental anterior deviation of the aorta.

## Contribution

The first reported case of a prenatal sonographic sign of segmental aortic anterior deviation in bilateral renal agenesis.

## Key findings

- A new sonographic marker was identified in a fetus with bilateral renal agenesis.
- The marker is a segmental anterior deviation of the abdominal aorta.
- This finding was confirmed with both ultrasound and pathology images.

## Abstract

Bilateral renal agenesis is a rare congenital anomaly that is associated with high neonatal mortality. Bilateral renal agenesis is most often present with anhydramniosis in the mid-trimester.

We report a case of bilateral renal agenesis diagnosed prenatally. We presented the ultrasound and pathology images of this fetus with a new sonographic sign, segmental anterior deviation in the abdominal aorta.

To our knowledge, this is the first reported case of a fetus with a segmental aortic anterior deviation.