Results of this study by Dr Fava show that most urinary BMs of histological activity were⬆️at 6 & 12mos in pts who lost GFR at 3yrs. ☝️Some LN pts still develop renal damage despite clinical response. Is there a role for BMs in monitoring tx? #ACR23 ABST0850 @RheumNow #ACRbest https://t.co/H5G6LJ22lw