The mechanisms of hepatic cystogenesis: a sequence of the interconnected molecular and cellular (a) primary, (b) secondary, and (c) tertiary events in cholangiocytes. In panel a, PLD-associated genes are shown in blue and respective protein products are shown in black. Abbreviations: ADPKD, autosomal dominant polycystic kidney disease; ADPLD, autosomal dominant polycystic liver disease; ARPKD, autosomal recessive polycystic kidney disease; PLD, polycystic liver disease; PLDC, polycystic liver disease cholangiocyte.