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[Cholesteryl ester storage disease in the liver (author's transl)]
Leber, Magen, Darm
|December 1, 1981
Summary
Cholesteryl ester storage disease is a rare genetic disorder causing excess cholesterol buildup in the liver due to reduced lysosomal acid lipase activity. Early diagnosis via liver biopsy is crucial for managing potential liver damage and cirrhosis.
Area of Science:
- Biochemistry
- Genetics
- Pediatrics
Background:
- Cholesteryl ester storage disease (CESD) is a rare inherited metabolic disorder.
- It is characterized by the excessive accumulation of cholesteryl esters within liver cells.
- The primary defect is a deficiency in lysosomal acid lipase (LAL) activity.
Observation:
- The most common initial symptom is significant liver enlargement without other physical complaints.
- Liver biopsy reveals characteristic histological findings, including lipid droplets in hepatocytes and foamy Kupffer cells.
- Adrenal calcification must be excluded to differentiate from Wolman disease.
Findings:
- Biochemical analysis of liver tissue shows elevated cholesteryl ester content.
- Cultured fibroblasts exhibit decreased alpha-naphthyl-acetat-esterase activity, confirming LAL deficiency.
- Histological examination of liver biopsies is key for diagnosis.
Implications:
- Prognosis is linked to the severity of liver insufficiency and potential progression to fibrosis and cirrhosis.
- Early detection and management are vital, especially in pediatric cases.
- Understanding LAL deficiency aids in differentiating and treating lysosomal storage disorders.