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Start free with EleplanPolyendocrine-polyneuropathy syndrome
ORPHA:453533Disease
What it is
A rare genetic disease characterized by childhood onset of multiple endocrine manifestations in combination with central and peripheral nervous system abnormalities. Reported signs and symptoms include postnatal growth retardation, moderate intellectual disability, hypogonadotropic hypogonadism, insulin-dependent diabetes mellitus, central hypothyroidism, demyelinating sensorimotor polyneuropathy, and cerebellar and pyramidal signs. Progressive hearing loss and a hypoplastic pituitary gland have also been described. Brain imaging shows moderate white matter abnormalities.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood
- Inheritance
- Autosomal recessive
- Classified as
- Disease
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%
19- Abnormal pyramidal sign
- Alopecia
- Ataxia
- Decreased circulating follicle stimulating hormone concentration
- Decreased circulating luteinizing hormone level
- Decreased serum testosterone concentration
- Decreased testicular size
- Demyelinating peripheral neuropathy
- Dysarthria
- Dystonia
- EMG: slow motor conduction
- Hypoglycemia
- Hypogonadotropic hypogonadism
- Intellectual disability, moderate
- Pes cavus
- Postnatal growth retardation
- Progressive hearing impairment
- Proximal muscle weakness in lower limbs
- Type II diabetes mellitus
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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