The Stomach-Bladder Proximity Sign: What Does it Say?

Abstract Fetal gastrointestinal tract (GIT) anomalies account for 7 to 8% of congenital malformations. There are no well defined protocols for examining fetal GIT, which is a dynamic system that plays a vital role in amniotic fluid homeostasis. We present four cases that highlight the importance of the relative positions of the stomach, small bowel, and bladder in the coronal plane of the fetal abdomen in the diagnosis/exclusion of certain anomalies.