Fig. 2From: Granulomatous interstitial nephritis due to chronic lymphocytic leukemia: a case reportImmunohistochemical staining of CD3, CD5, CD20, and CD23. Under low magnification, the tubulointerstitial area was strongly positive for CD5 and CD20, positive for CD3, and weakly positive for CD23. Under high magnification, the inside or in the vicinity of the epithelioid cell granulomas was positive for CD3 and CD 5, and negative for CD20 and CD23. Scale bars, 50 μmBack to article page