It's probably hydronephrosis. Can't say for sure (obviously) but it is often seen in ultrasounds and resolves itself before or just after the birth. Usually it is because of reflux that causes the urine to back up into the kidney which, in turn, causes the dilation. It is, apparently, one of the most common defects seen in new born baby boys but can also be seen in girls as well. My niece was diagnosed with hydronephrosis in utero and is totally fine, nothing has ever been done to treat it. She is followed up at a children's hospital once a year or so to ensure things are still working properly. My ds was born with it (not diagnosed in utero) and was 3 weeks old with a diaper full of blood and a raging UTI before we knew anything about it. Lots of antibiotics and many, many tests later it was found to be an immaturity in the ureter that will resolve itself in time. There have been many discussions about this on MDC and if you search hydronephrosis you might get some other info from the many other mamas who have been through it. It can be a big deal and can be no big deal. Tell her to see a specialist (a nephrologist) and find out the extent of his condition so a plan can be made. I personally know many children who have this condition and in every case it has been a minor blip in their otherwise healthy selves.
This link was very helpful to me when I was first given my ds diagnosis.
http://www.duj.com/hydronephrosis.html
This link was very helpful to me when I was first given my ds diagnosis.
http://www.duj.com/hydronephrosis.html