case_images: PMC3927191_01
case_images: Bone marrow biopsy (H and E, x100) showing plenty of atypical plasma cells; with bone marrow aspirate (H and E, x400) showing plasmablasts (insets a and b)
case_images: IJN-24-41-g001.jpg
case_images: PMC3927191_01_IJN-24-41-g001.jpg
case_images: F1
case_images: BM biopsy done showed 79% of plasma cells with plasmablastic morphology [Figure 1], which were CD138 positive with kappa restriction.
case_images: Renal biopsy (H and E, x100) showing interstitial infiltrates with mononuclear cells and extensive tubular pale eosinophilic fractured casts (arrows), which were kappa restricted on immunoflurosence
case_images: IJN-24-41-g002.jpg
case_images: PMC3927191_01_IJN-24-41-g002.jpg
case_images: F2
case_images: Renal function deteriorated rapidly; he underwent a renal biopsy, which showed pale eosinophilic, Schiff poor fractured casts in the renal tubules [Figure 2], which were kappa restricted.