Any Neu-Laxova syndrome in which the cause of the disease is a mutation in the PHGDH gene. The disease is Neu-Laxova syndrome 1 (Monarch Disease Ontology entry MONDO_0009736). Also known as: 3-Phosphoglycerate dehydrogenase deficiency, neonatal form, 3-phosphoglycerate dehydrogenase deficiency, prenatal form, Neu-Laxova syndrome caused by mutation in PHGDH, Neu-Laxova syndrome due to 3-phosphoglycerate dehydrogenase deficiency, Neu-Laxova syndrome type 1, PHGDH Neu-Laxova syndrome.