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Start free with Eleplan3-phosphoglycerate dehydrogenase deficiency, infantile/juvenile form
ORPHA:79351Etiological subtype
Also called PHGDH deficiency, infantile/juvenile form
What it is
3-Phosphoglycerate dehydrogenase deficiency (3-PGDH deficiency) is an autosomal recessive form of serine deficiency syndrome characterized clinically in the few reported cases by congenital microcephaly, psychomotor retardation and intractable seizures in the infantile form and by absence seizures, moderate developmental delay and behavioral disorders in the juvenile form
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Adolescent, Childhood, Infancy
- Inheritance
- Autosomal recessive
- Classified as
- Etiological subtype
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
Common30–79%
15Sometimes5–29%
28- Abnormal cortical gyration
- Abnormal facial shape
- Abnormality of hair texture
- Adducted thumb
- Athetosis
- Atonic seizure
- Atypical behavior
- Bilateral tonic-clonic seizure
and 20 more in this range
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Gene
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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