Then a broad spectrum of immunohistochemical stains were used, and the tumor cells were immunoreactive for CD79α (Figure 2b), CD20, CD43, paired box protein 5 (PAX5), leukocyte common antigen (LCA), and partially for CD5 (Additional file 1), but negative for CD138, CD68, CD163, CD3, synaptophysin and neuron-specific enolase. This evidence concerns the gene PTPRC and neoplasm.