Figure 3.

Retroperitoneal tissue. Patient 7. Pre-glucocorticoid treatment: (a) fibrosis and plasma cells (haematoxylin and eosin ×400); (b) IgG4-positive plasma cells. Post-glucocorticoid treatment: (c) scattered CD138-positive plasma cells; (d) IgG4 staining reveals no positive cells.

Neild et al. BMC Medicine 2006 4:23   doi:10.1186/1741-7015-4-23
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