Systemic Lupus Erythematosus Nephritis Class III

**Semantic type:** Disease or Syndrome

**Definition:** Systemic lupus erythematosus nephritis with active of inactive focal, segmental or global endo- or extracapillary glomerulonephritis involving less than 50% of all glomeruli, typically with focal subendothelial immune deposits with or without mesangial alterations. (Weening, Jan J. et al. (2004). The Classification of Glomerulonephritis in Systemic Lupus Erythematosus Revisited. Journal of the American Society of Nephrology 15(2), 241-50.)

**Synonyms:** - Focal Lupus Nephritis