Spastic ataxia-dysarthria due to glutaminase deficiency
ORPHA:557056· ICD-10 E88.8
Definition
A rare genetic neurometabolic disease characterized by childhood onset of global developmental delay, progressive spastic ataxia leading to loss of independent ambulation, and elevated plasma levels of glutamine. Optic atrophy, tremor, and dysarthria have also been reported. Brain imaging may show cerebellar atrophy.
- Prevalence
- <1 / 1 000 000
- Inheritance
- Autosomal dominant
- Age of onset
- Childhood