Sentinel joint! #POS0385 Study of 524 preclinical RA followed 2 yrs found that intermetatarsal bursitis (IMB) can predict devl't of RA esp in ACPA+ pts 👉>70% w/abnormal IMB dev RA over 1 yr 👉synovial lining is found in the intermetatarsals #EULAR2021 @rheumnow https://t.co/RQzZRh1eC2