MME and neoplasm: Immunohistochemically, the tumor cells expressed CD45, CD20 (Figure 2(b)), CD10, MUM1 (Figure 2(c)), PAX5, and bcl-6, and only very weak staining for BCL2, but were negative in reactions with the CD2, CD3, CD4, CD5, CD8, CD30, VS38c, Cyclin–D1, and TdT.