Malonyl coenzyme A (CoA) decarboxylase (EC 4.1.1.9, MCD) deficiency, or malonic aciduria, is a rare inborn error of metabolism characterised by a variable phenotype of developmental delay, seizures, cardiomyopathy and acidosis.
Malonyl-CoA decarboxylase (MCD) deficiency is an extremely rare inborn error of metabolism that presents with metabolic acidosis, hypoglycemia, and/or cardiomyopathy.