Morphologic studies of the placenta and autopsy findings in neonatal-onset glutaric acidemia type II.

Abstract

A case of neonatal-onset glutaric acidemia type II with electron-transfer flavoprotein (ETF) deficiency is presented. The morphological pattern of disease in the male infant included hypospadias, cryptorchidism, bilateral 13 ribs, nuclear cataract, cystic dysplasia of kidneys, lipid accumulation in the liver and renal tubular epithelium, and immature brain with white matter gliosis. The morphologic examination of the placenta revealed features of delayed maturation, including large-for-gestational-age size and abundant immature intermediate villi with cellular syncytiotrophoblast, persistent villous cytotrophoblast, and decreased syncytial knots. In addition, immature intermediate villi showed exaggeration of lacunar interstitial spaces consistent with non-hydropic villous edema. Marked lipid accumulation was seen within extravillous trophoblasts of placental septa and cell islands. Light lipid accumulation was also noted within fibroblasts of stem villi. These findings suggest that in glutaric acidemia type II, fatty acid oxidation could also be affected in the placenta.

• Authors: Igor I Slukvin, M Shahriar Salamat, Sunita Chandra
• Journal: Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society (Pediatr Dev Pathol) 2002 May-Jun Vol. 5 Issue 3 Pg. 315-21 ISSN: 1093-5266 [Print] United States
• PMID: 12007026 (Publication Type: Case Reports, Journal Article)

Chemical References

• Electron-Transferring Flavoproteins
• Flavoproteins
• Glutamic Acid
• Oxidoreductases
• Oxidoreductases Acting on CH-CH Group Donors
• Glutaryl-CoA Dehydrogenase

Topics

• Abnormalities, Multiple (metabolism, pathology)
• Adult
• Amino Acid Metabolism, Inborn Errors (genetics, metabolism, pathology)
• Electron Transport
• Electron-Transferring Flavoproteins
• Fatal Outcome
• Female
• Flavoproteins (metabolism)
• Glutamic Acid (blood)
• Glutaryl-CoA Dehydrogenase
• Humans
• Infant, Newborn
• Male
• Oxidoreductases (deficiency, genetics)
• Oxidoreductases Acting on CH-CH Group Donors
• Placenta (pathology)
• Pregnancy