Blau syndrome -a rare autoinflammatory Dz w/ triad of granulomatous dermatitis, arthritis, & uveitis (may cause blindness); from a NOD2 gain-of-function mutations. Onset age 2-4 yrs. Early biologics (esp TNFi) may prevent joint complications; but metanalysis shows no preferred https://t.co/wYTNv50tqM