Autopsy of a 45-year-old Man with Liver Failure Due to Polycystic Liver Disease.

A 37-year-old man with autosomal dominant polycystic kidney disease (ADPKD) was admitted to our hospital with a liver volume of 8,000 cm. Hepatic arterial embolization was performed using a microcoil but was ineffective. Eight years later, the hepatomegaly progressed to liver failure and death. At autopsy, the liver weighed 21.5 kg, and the entire liver had been replaced by cysts; in the few remaining areas of liver parenchyma, microscopic, small cysts of various sizes and fibrosis were evident, with only a few normal hepatocytes observed. Hepatic arterial branches developed; however, the portal vein could not be observed.