CPT2 and myopathy: Three distinct phenotypes of the CPT II deficiency have been reported: a lethal neonatal form (hypoketotic hypoglycaemia and severe hepatomuscular symptoms); a severe infantile hepatocardiomuscular form (hypoketotic hypoglycaemia, liver failure, cardiomyopathy, and myopathy); and the classical myopathic form.1, 5, 6, 7