Keywords: AGS, Aicardi-Goutieres syndrome; CTCL, cutaneous T-cell lymphoma; SAM domain and HD domain–containing protein 1; SAMHD1, SAM domain and HD domain-containing protein 1; SAMS, stroke, aneurysm, moyamoya, and stenosis; SLE, systemic lupus erythematosus; cutaneous T-cell lymphoma.