fig5

Figure 5. Plasmocytoid dendritic cells closely intermingled with the carcinoma cells (A); macrophages of M2 type are intimately associated with the adenocarcinoma cells. Immunohistochemistry for CD206 (B); increased numbers of regulatory T cells within the tumor stroma of this adenocarcinoma. Immunohistochemistry for FOXP3 (C); myeloid derived suppressor cells closely associated with cells of this squamous cell carcinoma. Immunohistochemistry for CD11b (D). Bars 20 and 50 µm, and magnification 200×