91 #SLE pts w/ no baseline synovitis, underwent Ultrasound exams. 10 yrs later, 31 had clinical progression of arthritis. Pts w/ progression, 75% had baseline subclinical synovitis on US vs without progression 77% did NOT have an abnormal US at baseline https://t.co/MN9wkNgsQV https://t.co/ozgvjFI531