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Start free with EleplanPrimary hypomagnesemia-generalized seizures-intellectual disability-obesity syndrome
ORPHA:620363Disease
What it is
A rare renal tubular disease characterized by hypomagnesemia due to renal magnesium wasting, recurrent generalized seizures, mild to moderate intellectual disability, speech delay and obesity due to CNNM2 mutations. Most patients also manifest motor skill defects and hyperkinesia. Majority of the affected individuals do not exhibit brain anomalies.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood, Infancy
- Inheritance
- Autosomal dominant, 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.
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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