Aicardi-Goutieres Syndrome 6

**Semantic type:** Disease or Syndrome

**Definition:** An autosomal recessive condition caused by mutation(s) in the ADAR gene, encoding double-stranded RNA-specific adenosine deaminase. Clinical features and onset may vary significantly, but is characterized in its most severe form by cerebral atrophy, leukodystrophy, intracranial calcifications, chronic cerebrospinal fluid (CSF) lymphocytosis, and increased concentrations of CSF alpha-interferon.

**Synonyms:** - AGS6