1a: High-Grade, Advanced-Stage Serous Ovarian Cancer Immunohistochemically Stained for CD8 T Lymphocytes and HLA-DMB. Marked CD8 T lymphocyte (red) infiltration in the tumor epithelium (10X)
1b: Scant CD8 T lymphocyte infiltration in the tumor epithelium (10X)
1c: High expression of HLA-DMB (red) in the tumor cell cytoplasm(10X)
1d: Low expression of HLA-DMB (10X)