Fig. 3

Clinical course during hospitalization. Although piperacillin-tazobactam was initiated after admission, the fever did not subside, and serum creatinine levels increased, then he was referred to our department. A kidney biopsy was performed on the 7th hospital day, and oral prednisolone (PSL) therapy, 30 mg (0.5 mg/kg) daily was initiated. After treatment, the fever subsided, and renal function improved gradually. The serum creatinine level decreased to 1.99 mg/dL within 2 weeks. Patient was discharged on the 17th day