Chinese study of 552 pts w/ ANCA Assoc. Vasculitis - 23 had cancer prior to AAV Dx; 43 after Dx (w/in 4.3yrs)= SIR: 2.24. CA mostly lung CA (SIR: 5), followed by kidney, bladder, ureter, prostate. Higher risk if male (HR:2.8) and older (per year, HR:1.04) https://t.co/xhH3uU3GCj