Oxalate & Secondary Hyperoxaluria (1) High-oxalate diet (eg spinach, rhubarb) (2) Fat malabsorption (IBD, s/p RYGB) (3) Alterations in intestinal microorganisms (4) Genetic variants of intestinal oxalate transporters (5) S/p renal transplant BWH Medicine Chiefs @BrighamChiefs #Oxalate #Hyperoxaluria #causes #differential #diagnosis