Fig. 2From: Combined proximal tubulopathy, crystal-storing histiocytosis, and cast nephropathy in a patient with light chain multiple myelomaImmunohistochemical staining for renal involvement of monoclonal k light chain gammopathy. a CD68 immunostaining showed reactivity in interstitial mononuclear and multinucleated cells. b κ light chain staining in tubular epithelial cells. c κ light chain staining in casts (arrows). d λ light chains were not detectedBack to article page