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Hepatitic inherited metabolic disorders
1University of Florida College of Medicine, Gainesville, Florida 32610-0275, USA.
Seminars in Diagnostic Pathology
|March 16, 2007
Summary
This review covers common inherited metabolic disorders presenting with liver issues. Early diagnosis through clinical, lab, and genetic analysis is crucial for managing alpha1-antitrypsin disorder, Wilson disease, cystic fibrosis, and PFIC syndromes.
Area of Science:
- Hepatology
- Medical Genetics
- Pediatric Gastroenterology
Background:
- Primary metabolic disorders encompass diverse conditions, some affecting the liver with varied histopathology.
- Accurate diagnosis necessitates integrating clinical, laboratory, and genetic findings.
Purpose of the Study:
- To review three common inherited metabolic disorders presenting with a hepatitic pattern.
- To highlight diagnostic considerations for alpha1-antitrypsin disorder, Wilson disease, cystic fibrosis, and progressive familial intrahepatic cholestasis (PFIC) syndromes.
Main Methods:
- Review of literature on inherited metabolic disorders with hepatic manifestations.
- Discussion of clinical presentations, histopathology, and diagnostic approaches.
Main Results:
- Alpha1-antitrypsin disorder shows variable presentation from neonatal hepatitis to chronic progressive disease.
- Wilson disease typically presents as chronic hepatitis in older children and adults.
- Cystic fibrosis can manifest with obstructive biliary syndrome.
- PFIC syndromes lead to progressive cholestatic liver disease and cirrhosis, with specific gamma-glutamyl transpeptidase (GGT) patterns differentiating subtypes.
Conclusions:
- These inherited metabolic disorders are important considerations in the differential diagnosis of liver disease across age groups.
- Genetic analysis is essential for definitive diagnosis, particularly for rare PFIC syndromes.
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