Fig. 1a

Periodic Acid-Schiff (PAS) stain magnification 400×—acute tubular injury. b Hematoxylin eosin stain magnification 200×—Oxalate crystals under polarized light
Periodic Acid-Schiff (PAS) stain magnification 400×—acute tubular injury. b Hematoxylin eosin stain magnification 200×—Oxalate crystals under polarized light