Fig. 2. Immunohistochemistry for methionyl-tRNA synthetase (MRS), CD20 (B-lymphocytes), CD3 (T-lymphocytes), CD14 (macrophages and monocytes), and CD45 (leukocyte common antigen) markers in the lymph nodes with non-small cell lung cancer, splenic tissue, thymic tissue from the thymoma, and tonsils. Magnification: ×100.