Review Article
Classification and Differential Diagnosis of Diabetic Nephropathy
Table 2
Separate scoring system of interstitial and vascular lesions of DN.
| Lesion | Criteria | Score |
| Tubulointerstitial lesions | No IFTA | 0 | IFTA < 25% | 1 | 25% < IFTA < 50% | 2 | IFTA > 50% | 3 |
| Interstitial inflammation | Absent | 0 | Relate to IFTA | 1 | In areas without IFTA | 2 |
| Arteriolar hyalinosis | Absent | 0 | One hyaline arteriole | 1 | More than one hyaline arteriole | 2 |
| Arteriosclerosis (most severely affected artery) | No intimal thickening is observed | 0 | Intimal thickening is less than the thickness of the media | 1 | Intimal thickening is more than the thickness of the media | 2 |
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Note. IFTA: tubulointerstitial fibrosis and tubular atrophy.
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