The tumor cells were negative for CD30, ALK-1, CD-2, CD-3, CD-4, CD-8, CD-7, CD-11c, CD-20, CD-21, CD-45 RO, CD-68, granzyme B, Bcl-2 protein, HMB-45, Melan A, EMA, pan cytokeratin, and follicular dendritic cell marker (CD21). This evidence concerns the gene CR2 and neoplasm.