Figure 3.

Findings in other organs. A, Kidney showing acute tubular damage without evidence of increased inflammatory infiltrates [periodic acid–Schiff (PAS) stain]. B, Kidney showing disseminated intravascular coagulation (PAS). C, Florid splenitis showing increases in neutrophil numbers in the perifollicular and marginal zones of the spleen (PAS). D, Lymph node showing an increase in the number of plasmablasts in the interfollicular zone as well as congestion (haematoxylin and eosin). Insert: immunohistochemistry for multiple myeloma 1.