<unk>  is a congenital disorder of the kidneys characterized by a cystic dilatation of the collecting tubules in one or both kidneys.
Medullary sponge kidney
Medullary cystic kidney disease
Horseshoe kidney
Polycystic kidney disease 2
Multicystic dysplastic kidney
Cystic nephroma
Polycystic kidney disease
Glomerulonephrosis