Also known as: Acute Tubulo-Interstitial Nephritis / Pyelonephritis acute / Acute Pyelonephritis(APN) / Acute nephrosis / Acute tubulointerstitial nephritis / Acute infectious interstitial nephritis / Pyelonephritis acute NOS / Acute pyelonephritis (disorder) / Acute interstitial nephritis / Interstitial nephritis acute / Nephritis interstitial acute / Acute tubulointerstitial nephritis (disorder) / Pyelitis, acute / Acute pyelitis (disorder) / Acute pyelitis / Acute bacterial tubulointerstitial nephritis (disorder)