1. Volume 76, Issue 5, Pages 546-556 (September 2009)
The Oxford classification of IgA nephropathy: pathology definitions, correlations, and reproducibility 
A Working Group of the International IgA Nephropathy Network and the Renal Pathology Society 
Kidney International 
Volume 76, Issue 5, Pages (September 2009)
DOI: /ki
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2. Figure 1
An illustration of mesangial cellularity scoring (objective × 40 original magnification, periodic acid Schiff stain).
Kidney International  , DOI: ( /ki )
Copyright © 2009 International Society of Nephrology Terms and Conditions

3. Figure 2
Proliferative and sclerosing glomerular lesions. All figures objective × 40 original magnification, periodic acid Schiff stain. (a) Normal glomerulus by light microscopy. (b) Tuft adhesion (arrow) without segmental sclerosis. This lesion should be included with segmental sclerosis lesions for scoring purposes. (c) Segmental sclerosis (arrow) with a lobule away from the sclerosis showing moderate mesangial hypercellularity (arrowhead). (d) Extensive segmental sclerosis (arrow). This glomerulus should not be used for mesangial scoring. (e) A glomerulus showing severe mesangial hypercellularity (arrow) and a small cellular crescent (arrowhead; 10–25% of the glomerular circumference). (f) A glomerulus showing mild mesangial hypercellularity (arrow). There is segmental endocapillary hypercellularity (arrowhead); this segment should not be used for mesangial scoring. In addition, there is a cellular crescent (asterisk; 25–50% of the glomerular circumference).
Kidney International  , DOI: ( /ki )
Copyright © 2009 International Society of Nephrology Terms and Conditions

4. Kidney International 2009 76, 546-556DOI: (10.1038/ki.2009.168)
Copyright © 2009 International Society of Nephrology Terms and Conditions