Fig. 3
From: The pathological and outcome characteristics of renal lesions in Crohn’s disease
Pathologic features of minimal change disease, thin-basement-membrane nephropathy, and interstitial nephritis associated with Crohn’s disease. A Minimal change disease with the diffuse fusion of foot processes (Arrow) (Electron microscopy, original magnification × 4000). B Thin-basement-membrane nephropathy with the basement membrane less than 250 nm and segmentally shriveled (Arrow) (Electron microscopy, original magnification × 800). C Acute interstitial nephritis with predominantly lymphocytes and the irregular oxalate crystals deposited in the lumen of the renal tubules under polarized light (Arrows) (Hematoxylin and eosin, original magnification × 200). D Granulomatous interstitial nephritis with several noncaseating granulomas in the renal interstitium (Arrow) (Hematoxylin and eosin, original magnification × 400)