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Pathology of Progressive Familial Intrahepatic Cholestasis: An update
Suvradeep Mitra1, Mukul Vij2, Jagadeesh Menon3
1Department of Histopathology, PGIMER, Chandigarh, India.
Summary
Progressive familial intrahepatic cholestasis (PFIC) is a rare liver disorder caused by genetic defects in bile transport. Understanding its molecular and pathological features is key for accurate diagnosis and management.
Area of Science:
- Hepatology
- Genetics
- Pathology
Background:
- Progressive familial intrahepatic cholestasis (PFIC) encompasses rare, autosomal recessive liver diseases.
- Characterized by defective bile formation and secretion, leading to cholestasis, pruritus, growth impairment, and liver failure.
- Distinct PFIC subtypes arise from pathogenic variants in hepatocellular transporters.
Purpose of the Study:
- To enhance pathologists' understanding of PFIC.
- To outline the morphomolecular and immunohistochemical features of PFIC.
- To highlight diagnostic hallmarks and subtleties for accurate PFIC diagnosis.
Main Methods:
- Comprehensive review of PFIC literature.
- Analysis of molecular genetics findings.
- Examination of pathological and immunohistochemical characteristics.
Main Results:
- Identification of causative genetic variants in key hepatocellular transporters.
- Description of distinct PFIC subtypes based on genetic defects.
- Elucidation of morphomolecular and immunohistochemical disease signatures.
Conclusions:
- Early recognition of PFIC is crucial for timely intervention.
- Medical and surgical management can delay disease progression.
- Liver transplantation is the definitive therapy for advanced PFIC.
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