Any Aicardi-Goutieres syndrome in which the cause of the disease is a mutation in the RNASEH2B gene. The disease is Aicardi-Goutieres syndrome 2 (MONDO_0012429). Also known as: Aicardi-Goutieres syndrome caused by mutation in RNASEH2B, Aicardi-Goutieres syndrome type 2, RNASEH2B Aicardi-Goutieres syndrome.