What is lupus nephritis?

Updated: Mar 04, 2019
  • Author: Lawrence H Brent, MD; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Lupus nephritis, one of the most serious manifestations of systemic lupus erythematosus (SLE), usually arises within 5 years of diagnosis; however, renal failure rarely occurs before American College of Rheumatology criteria for classification are met.

Lupus nephritis is histologically evident in most patients with SLE, even those without clinical manifestations of renal disease. The symptoms of lupus nephritis are generally related to hypertension, proteinuria, and renal failure. (See Presentation.)

Evaluating renal function in patients with SLE to detect any renal involvement early is important because early detection and treatment can significantly improve renal outcome. Renal biopsy should be considered in any patient with SLE who has clinical or laboratory evidence of active nephritis, especially upon the first episode of nephritis. (See Workup.)

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