the differential diagnosis is not based on age at discovery , clinical symptoms or renal imaging , which may all be similar in the 2 diseases , but on the presence , detected by either pathology or ultrasonography , of the biliary dysgenesis specific to arpkd , and mainly on the mode of inheritance , confirmed by the results of ultrasonography in parents and grandparents .
C0022646
renal
C0085548
arpkd