Excellent review of IgG4-RD, @NatRevRheumatol IgG4-RD is indolent (afebrile, etc) but 60% of pts have irreversible damage at dx! Universal response to GC but 40% not in remission at 1yr; B-cell tx can bring about "dramatic response" Good read & topic: https://t.co/Mbrq7bFHk0 https://t.co/8oQF08qzit