Aumento aislado y sostenido de aspartato aminotransferasa por presencia de macroenzimas. Caso Clínico

Resumen

We report an asymptomatic 23 years old woman with an isolated and persistent increase in serum levels of aspartate aminotransferase (AST). An extensive work up including laboratory and image testing revealed no abnormalities thus suggesting the presence of macro-AST. A polyethylene glycol (PEG) precipitation assay was performed and confirmed the presence of macro-AST.