ACR 2022 Tweet by Md Yuzaiful Md Yusof

MAS, the most severe complication of Still’s disease, is increasingly recognized as a cytokine-driven hyperinflammatory state centered on interferon gamma (IFNγ). Therapeutic advances presented at EULAR 2026 demonstrate both consolidation of established pathways and expansion into novel biologic strategies.

Arthritis Research & Therapy has published an overarching review of Still's disease - claiming it to be a single acquired and complex autoinflammatory disease in which both pediatric and adult forms share core pathogenic mechanisms, genetic associations and clinical presentations, with minor differences between children and adults who are afflicted.