Severe Obstructive Cholestasis and Hypercalcemia Caused by Light-Chain Amyloidosis: A Case Report
Gastrointestinal amyloidosis is a condition caused by the deposition of extracellular protein fragments. It can be associated with complex and diverse pathways and can have numerous manifestations and etiologies. Hepatic amyloid light-chain (AL) amyloidosis is a rare disorder characterized by the deposition of the insoluble amyloid protein in the liver. The clinical presentations of AL amyloidosis are frequently non-specific. In this case report, we describe a patient with amyloidosis, who initially presented with an unusual case of severe intrahepatic cholestasis, which followed a rapidly progressive clinical course that was associated with the acute hypercalcemic crisis. The diagnosis of amyloidosis was made after the liver and bone biopsies were performed. Our findings revealed that AL amyloidosis should be considered, when a patient presents with cholestatic hepatitis, renal failure, and hypercalcemia.
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