Ten Cases of Biopsy-Proven Acute Tubulointerstitial Nephritis: Report from a Single Center in a Rural Area from 2008 to 2021

Figure 1

Clinical features and course of case 1. Renal biopsy of case 1 was performed approximately 2 months after disease onset. Disease activity and effectiveness of treatment for acute tubulointerstitial nephritis were monitored by renal function (serum creatinine), inflammation (C-reactive protein), and tubular functional defects (urinary glucose, protein, β2-microglobulin, and N-acetylglucosaminidase). Abbreviations: RBx, renal biopsy; RBCs, red blood cells; NA, not available; HPF, high-power field; NAG, N-acetylglucosaminidase.