Tubulointerstitial Nephritis

How to Cite This Chapter: To KC-Y, Czekalski S, Pawlaczyk K, Drabczyk R. Tubulointerstitial Nephritis. McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.II.14.4.?utm_source=nieznany&utm_medium=referral&utm_campaign=social-chapter-link Accessed February 25, 2024.
Last Updated: February 13, 2022
Last Reviewed: February 13, 2022
Chapter Information

Definition and EtiologyTop

Interstitial nephritis is characterized by inflammation of the renal interstitium. It may be secondary to glomerular or renal vascular damage and usually coexists with renal tubular damage, which is why it is often termed tubulointerstitial nephritis (TIN).

Acute interstitial nephritis (AIN) is associated with acute kidney injury (AKI), which develops over a period of days to several weeks and is often reversible. Most often AIN is an immunologically induced hypersensitivity reaction to an antigen (most commonly a drug or an infectious agent).

Chronic interstitial nephritis (CIN) develops over months or years and is associated with progressive fibrosis of the tubulointerstitium, leading to chronic kidney disease. Tubulointerstitial injury can be caused by exogenous or endogenous toxins, infections, immune-mediated mechanisms, obstruction, or ischemia.

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