Dr John Stone grand rounds Kroc lecture #wustlRheum. Pearls: -IgG4RD can manifest as a variable vasculitis -Men have worse disease -Histology will not show necrosis or neutrophils -IgG4 levels will rise as the disease progress (>5X) -Rx with B cell therapy @alhkim @RheumNow https://t.co/GUw348OrrA