Primary Hyperoxaluria - A radiograph of the abdomen showed stones in the kidneys, bladder, and left ureter. Constituent analysis of the excreted stones indicated that the composition of the stones was more than 95% calcium oxalate monohydrate. #Clinical #Peds #Radiology #urology #Hyperoxaluria #PrimaryHyperoxaluria #AGXT #CalciumOxalate #NEJM