Specificity
This antibody recognizes an intra-cytoplasmic antigen; this antigen is present in normal as well as neoplastic plasma cells. This antibody superbly recognizes normal and neoplastic plasma cells in routine formalin-fixed, paraffin-embedded tissue sections. It is of potential value in identifying myeloma or plasmacytoma in bone marrow or other tissues. It also helps differentiate lympho-plasmacytoid lymphoma from lymphocytic and follicular lymphoma. Please note, this antibody is not suitable for staining frozen tissues.