ivangjeli on "Does anyone know about enlarged kidneys???"

Hi all,
I am worried as my little one has one enlarged kidney (4mm) discovered last week at 18 week scan. DH read that it could be a soft marker for Downs but our NT and blood test came back at 1 in 6000 for Downs. My DR. is away right now and no one else will speak to me.
Does anyone know what would cause a kidney to enlarge? Blockage? other?
Please help if you can.
Thanks,
Mary