A cystic foci, or cystic focus, is when an ultrasound identifies a finding that is cystic-like. It mean there's a tiny collection of fluid wherever the cystic focus was found.

A baby does not need to be born with polycystic kidney disease. PKD is caused by a genetic defect.

no. It sometimes changes but not all the time

There are many kidney disease. Infections and stones are quite common. You can also get nephritis, and damage to the kidneys from high blood pressure, diabetes, analgesic abuse. Congenital problems can occur like PUJ obstruction, cystic kidneys, horseshoe shaped kidney, duplex kidney, and kidney tumours.

cystic mass