This antibody is intended for in vitro diagnostic (IVD) use. Ventana Medical Systems' (Ventana) CONFIRM anti-PAX5 (SP34) Rabbit Monoclonal Primary Antibody is directed against a nuclear epitope present in human B lymphocytes. This antibody may be used to aid in the identification of normal and neoplastic cells of B-lymphocytic lineage. The antibody is intended for qualitative staining in sections of formalin-fixed, paraffin-embedded tissue. The clinical interpretation of any staining, or the absence of staining, shall be complemented by morphological studies and evaluation of proper controls. Evaluation shall be made by a qualified pathologist within the context of the patient’s clinical history and other diagnostic tests.