Table 1 |
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International Society of Nephrology/Renal Pathology Society classification of lupus nephritis |
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Class I |
Minimal mesangial lupus nephritis |
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Class II |
Mesangial proliferative lupus nephritis |
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Class III |
Focal lupus nephritis (<50% glomeruli) |
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III(A) |
Active lesions |
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III(A/C) |
Active and chronic lesions |
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III(C) |
Chronic lesions |
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Class IV |
Diffuse lupus nephritis (>50% glomeruli) |
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Diffuse segmental (IV-S) or global (IV-G) |
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IV(A) |
Active lesions |
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IV(A/C) |
Active and chronic lesions |
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IV(C) |
Chronic lesions |
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Class V |
Membranous lupus nephritis |
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Class VI |
Advanced sclerosing lupus nephritis (≥90% globally sclerosed glomeruli without residual activity) |
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Adapted with premission from Weening et al. [9]. |
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Saxena et al. Arthritis Research & Therapy 2011 13:240 doi:10.1186/ar3378 |
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