Rare co-existence of FMF & axSpA significantly lowered age of axSpA symptom onset. Radiographic changes in FMF+axSpA suggested worse disease. Rate of amyloidosis and hip involvement were higher in FMF+axSpA pts. Abs 0378 #ACR21 #RheumNow @RheumNow https://t.co/lUmn3A90Ob https://t.co/n3kj8GcV1i