Acute kidney injury due to intravenous detergent poisoning: A case report

Figure 1 Computed tomography of abdomen and pelvis at the emergency department. A: The common bile duct was mildly dilated, but it was considered as a senile change without any obvious obstructive lesion; B: Both renal parenchymal enhancements were decreased; C: Both kidney sizes and shapes were relatively normal.

Figure 2 Light micrographs of renal biopsy. A: The tubules show vacuolated degeneration with some red blood cells, granular materials (black arrow) (methenamine silver stain, × 400); B: The tubules show calcium concretions (black arrow) in tubular lumina and mitosis (orange arrow) (periodic acid-Schiff stain, × 400).

Figure 3 Electron micrographs of renal biopsy. A: The glomerulus is well preserved with focal foot process effacement at 10% of the external capillary surface (original magnification, × 1000); B: Some distal tubules show vacuolar degenerative change with electron dense granular in distal tubular lumen (original magnification, × 1200).

Figure 4 Changes in the serum creatinine level and urine output during hospitalization. On the 2^nd day of hospitalization, the serum creatinine (Cr) level increased while the urine output decreased. A total of four hemodiafiltration sessions were performed, and urine output gradually increased from the 7^th day of hospitalization. The serum Cr level began to decrease from the 12^th day of hospitalization, and the patient was discharged on the 17^th day of hospitalization without any sequelae. HDF: Hemodiafiltration; Cr: Creatinine.