Drug-Induced Acute Interstitial Nephritis with Nifedipine

Figure 1

Renal biopsy during AKI. (a) Masson trichrome staining showing nonnecrotic interstitial infiltrate (arrows) affecting 20% of the kidney biopsy (magnification ×40). (b) Higher magnification of the area boxed in (a) showing the granulomatous interstitial infiltrate composed of epithelioid cells (arrow), some multinucleated giant cells (arrowhead), and a lymphoplasmacytic infiltrate (asterisk) (magnification ×200).

(a)

(b)