Macro-AST as a cause of hypertransaminasemia: an uncommon entity but it exists

ABSTRACT

Macroenzymes are complexes formed by the binding of enzyme molecules to each other or to other plasma components. We report the clinical case of a woman with abnormal liver enzymes secondary to macro-AST. Macro-AST should be considered in the differential diagnosis as a cause of isolated AST elevation, thus avoiding unnecessary additional tests. (AU)