Ventana Medical Systems’ (Ventana) CONFIRM anti-CD8 (SP57) Rabbit Monoclonal Primary Antibody (CONFIRM anti-CD8 (SP57)) is intended for the qualitative detection of CD8 in sections of normal and neoplastic human tissues. The CD8 glycoprotein is present on cytotoxic/suppressor T lymphocytes that recognize antigen in the context of MHC class 1 molecules. CD8 positive staining results may aid in identifying T-cell lymphomas and in identifying the T cytotoxic/suppressor cell subset of T lymphocytes in normal tissues. The antibody is intended for qualitative staining in sections of formalin-fixed, paraffin-embedded tissue. This product should be interpreted by a qualified pathologist in conjunction with histological examination, relevant clinical information and proper controls. This antibody is intended for in vitro diagnostic (IVD) use.