Elongated Gallbladder

I just came back from an ultrasound with a specialist, and I was told my baby has an elongated gallbladder (no stones in it, which I didn’t even know was possible, but a good thing) and large kidney ducts with one kidney having extra fluid. I know extra fluid in the kidney can resolve it’s self, and the kidney ducts is just a waiting game to see what happens, but has anyone been told their baby has an elongated gallbladder? If so, what was the outcome?