I just wanted to wish you all the best and also let you know that my little one had Choroid plexus cysts as well. I did alot of research and I truly believe that all babies have them but most close up before the 20 week scan. I know they say with other markers it may be a problem, but I still believe all babies have the cysts at some point.
I hope the rest of your pregnancy is smooth and worry free.
Also, my DD who had the cysts measured for 30 weeks when she was actually 36 weeks, so of course I panicked, but she came out 3kilos, so totally average. Sometimes u/s give too much info I think. xoxoxo