Progressive Familial Intrahepatic Cholestasis (PFIC) Type 1, 2, and 3: A Review of the Liver Pathology Findings

ABSTRACT

Progressive familial intrahepatic cholestatic diseases encompass a group of autosomal recessive hereditary diseases, which usually present in infancy or childhood, with cholestasis of hepatocellular origin. The currently preferred nomenclature for the three PFIC disorders that have been characterized to date is FIC1 deficiency, BSEP deficiency, and MDR3 deficiency, relating to mutations in the specific genes involved in bile acid formation and transport. Since the first description of these diseases, extensive clinical, biochemical, and molecular studies have increased our understanding of the features specific to each one of them. This review focuses mainly on the liver histology, summarizing their characteristic pathologic features, the correlation to specific genotypes, and complications arising with disease progression.

Progressive familial intrahepatic cholestasis - pediatric liver disease - Byler disease - FIC1 deficiency - BSEP deficiency - MDR3 deficiency

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