Fig. 1

CD163 staining in a reactive lymph node. Immunohistochemical detection of CD163 cells in a benign lymph node of a cancer-free parotidectomy patient demonstrates low levels of M2 differentiation
CD163 staining in a reactive lymph node. Immunohistochemical detection of CD163 cells in a benign lymph node of a cancer-free parotidectomy patient demonstrates low levels of M2 differentiation