Figure 2.
Immunohistochemical staining of stromal CD163+ macrophages in tumor tissues (×100). (A) High infiltration level of stromal CD163+ macrophages in IMPC tissues, (B) stromal CD163+ macrophages negative staining in IMPC tissue, (C) high infiltration level of stromal CD163+ macrophages in IDC tissues, and (D) stromal CD163+ macrophages negative staining in IDC tissues. IDC = invasive ductal carcinoma of the breast, IMPC = invasive micropapillary carcinoma of the breast.