Key points in managing MDA5+ DM 1. Monitor lungs - HRCT/PFTs 2. Test muscle endurance (ref: IMACS site) not just strength 3. Close observation 4. MTX/MMF initial treatments 5. Repeat muscle biopsy if diagnosis unclear Meet the Expert Lundberg I, IMM session @RheumNow #ACR22 https://t.co/ZVFsYgDBx2