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An anomaly of bile acid synthesis with characteristics of mild cholestatic liver disease, fat malabsorption and/or neurological disease. The clinical presentation of this defect varies. Infants present with severe fat and fat-soluble vitamin deficiencies, haematochezia and mild cholestasis, whereas adults present with various neurological disorders BAS defect type 4 is caused by a mutation in the AMACR gene (5p13.2-q11.1). Transmission is autosomal recessive.
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An anomaly of bile acid synthesis with characteristics of mild cholestatic liver disease, fat malabsorption and/or neurological disease. The clinical presentation of this defect varies. Infants present with severe fat and fat-soluble vitamin deficiencies, hematochezia and mild cholestasis, whereas adults present with various neurological disorders BAS defect type 4 is caused by a mutation in the AMACR gene (5p13.2-q11.1). Transmission is autosomal recessive.
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