36wk pregnant. told today baby has fluid arpund heart and dilated bowel. waiting for appt w specialist but what are things that could cause this?

Perinatologist: The key next step is to see the perinatologist for confirmation of the findings. The specialist may not be concerned depending on their interpretation of the sonogram. It is important to interpret a sonogram finding in the proper context of the pregnancy. On needs to know if there are risk factors like diabetes and normal genetic testing as well as normal anatomic findings on previous sonograms