Differential diagnosis: This includes mainly the autosomal dominant form of polycystic kidney disease (ADPKD – Potter type III) but in ADPKD amniotic fluid amount is normal, and the bladder appears normal compared with ARPKD.
Moreover, the differentiation between the cortex and the medulla is more pronounced in comparison with ARPKD, because the cortex tends to be hyperechoic whereas the medulla is normally hypoechoic, probably due to confinement of the microcysts to the cortical region
Moreover, the differentiation between the cortex and the medulla is more pronounced in comparison with ARPKD, because the cortex tends to be hyperechoic whereas the medulla is normally hypoechoic, probably due to confinement of the microcysts to the cortical region