DH and I had our ultrasound to check on LO's kidneys yesterday, and while one of his kidneys are absolutely perfect, the other has doubled in size since our 20 week scan and they're sending us two hours away to see a perinatologist, and the way my OB said "No, we need to get you in to see him within the next couple of weeks." when I asked about when I should see him, has made me overly paranoid. I'm terrified of the thought of my baby having to possibly have a catheter or even surgery while he's still little (or anytime for that matter).
Re: Kidney dilated more at our last scan
I think I replied to your original post, but I've been through this with DS. Same situation as you...it was seen at 20 weeks, and then I had an additional US at 26 weeks where it was even more apparent. My son ended up having PUV, which is very serious and is uncommon, so don't become too alarmed if you read about it. The second poster is totally correct - more than likely they will closely monitor your fluid levels throughout the rest of your pregnancy. Eventually your fluid may drop to unsafe levels (mine did, but not until 36 weeks) because the amniotic fluid is all ending up in the kidneys and bladder due to some sort of potential blockage. I was induced at 36 weeks and then my son had surgery at 4 days old since he had valves (as they call PUV). We knew a whole lot before he was born, so I think you will probably too as it gets closer and you are able to meet with a pediatric urologist. Also know that many of these cases resolve themselves and require no surgery or NICU stay. Ours really was a worst case scenario, and even with it, our son should live a normal life. You only need one kidney to live a completely healthy life. DS has zero function in his right kidney (the one that dilated through my pregnancy) and he will have it removed as well as some reconstruction to his ureters and bladder this year when he turns 2. Outside of this, he is a completely healthy little boy developing on track and everything.
Please feel free to PM me as you learn more about your case or if you just need moral support. I was upset all the time about our situation and it kind of ruined the last trimester of my pregnancy...drove up my BP, etc. I just felt really alone, and jealous of people who were having totally normal pregnancies.
Lots of T&P to you. I'll be praying that both you and the second poster's cases resolve themselves - until you hear otherwise about your specific case, try to keep in mind that the majority of them do.