Interstitial nephritis

Medical condition

Interstitial nephritis, also known as tubulointerstitial nephritis, is inflammation of the area of the kidney known as the renal interstitium, which consists of a collection of cells, extracellular matrix, and fluid surrounding the renal tubules. It is also known as intestinal nephritis because the clinical picture may in some cases of acute pyelonephritis include mesenteric lymphadenitis. More specifically, in case of recurrent urinary tract infection, secondary infection can spread to adjacent intestine. In addition to providing a scaffolding support for the tubular architecture, the interstitium has been shown to participate in the fluid and electrolyte exchange as well as endocrine functions of the kidney.

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