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Start free with EleplanRNF13-related severe early-onset epileptic encephalopathy
ORPHA:544503Disease
Also called RNF13-related severe EOEE
What it is
A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by congenital microcephaly, infantile-onset epileptic encephalopathy, and profound developmental delay. Additional reported features include cortical visual impairment, sensorineural hearing loss, increased muscle tone, limb contractures, scoliosis, and dysmorphic features like midface hypoplasia, narrow forehead, short nose, narrowed nasal bridge, and small chin. Brain imaging may show thin corpus callosum and delayed myelination.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Neonatal
- Inheritance
- Autosomal dominant
- 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%
27- Abnormality of eye movement
- Cerebral visual impairment
- EEG with focal epileptiform discharges
- EEG with generalized slow activity
- Epileptic encephalopathy
- Failure to thrive
- Feeding difficulties
- Flexion contracture
- Gastrostomy tube feeding in infancy
- Hypertonia
- Hypoplasia of the corpus callosum
- Inguinal hernia
- Intellectual disability, profound
- Interictal EEG abnormality
- Irritability
- Microcephaly
- Midface retrusion
- Narrow forehead
- Narrow nasal bridge
- Restlessness
- Scoliosis
- Seizure
- Sensorineural hearing impairment
- Short chin
- Short nose
- Spasticity
- Visual fixation instability
Sometimes5–29%
22- Abnormal facial shape
- Abnormal vitamin B12 level
- Bilateral tonic-clonic seizure
- Cataract
- Cerebellar atrophy
- Delayed myelination
- Delayed skeletal maturation
- Edema of the dorsum of feet
and 14 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.
Benefit programs to look at
Programs whose eligibility touches the same ICD-10 categories. Eligibility is decided by the administering agency, never by this page.
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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