Fig. 4

Pathological pictures of ATIN and normal kidney (all HE staining). A: example 1, magnification 100xdexB: case 2, magnification × 400 × C: case 3, magnification × 200. From A to C, ATIN showed exfoliated brush margin of renal tubules, dilated lumen, diffuse edema of the renal interstitium, multifocal or diffuse (C) lymphoid and monocytes infiltration, and eosinophils infiltration. There were no obvious pathological changes in glomeruli and arterioles. Fig. D shows normal kidney, magnification × 100: glomeruli and tubules are normal