Τετάρτη 13 Ιουλίου 2016

Prenatal presentation of pyruvate dehydrogenase complex deficiency

Abstract

We present the case of a female infant referred for prenatal MR evaluation of ventriculomegaly, which had been attributed by the referring obstetrician to aqueductal stenosis. Fetal MR confirmed ventriculomegaly but also demonstrated cerebral volume loss and white matter abnormalities. After birth, the infant developed persistent lactic acidosis. A diagnosis of pyruvate dehydrogenase complex deficiency was made on the basis of metabolic and molecular genetic studies. Ventriculomegaly is a common referral reason for fetal MR, yet there are few published reports of the radiographic findings that accompany inborn errors of metabolism, one potentially under-recognized cause of enlarged ventricles. This case contributes to this small body of literature on the imaging features of pyruvate dehydrogenase complex deficiency by describing pre- and postnatal MR findings and key clinical details. Our report emphasizes the necessity of considering pyruvate dehydrogenase complex deficiency and other metabolic disorders as potential etiologies for fetal ventriculomegaly since prompt diagnosis may allow for early initiation of treatment and improve outcome.



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