Fig. 2
From: Lupus mastitis with predominant kappa-restricted plasma cell infiltration: report of a rare case
Immunostains to characterize periductal inflammatory cells in lupus mastitis. a CD138 highlighting plasma cells in over half of the inflammatory cells. b CD20 and c CD3 immunostains highlight smaller populations of both B lymphocytes and T lymphocytes. d Lambda and e Kappa light chain immunostain showed the Kappa-restriction of plasma cells. Immunostains for f CD19, g CD117 and h CD56 indicated the non-neoplastic nature of the plasma cells. (Immunohistochemistry, original magnification, × 200 [a-h])