CD79B and neoplasm: ALL 2 expressed surface proteins CD4, CD8, CD1a, CD38, CD44, CD45RA, CD49d, CD79b, CD95, CCR7, HLA-DR, and additionally expressed CD71 in a cluster of activated tumor T-cells; had an uneven tetraploid set of chromosomes, had a changed karyotype XXYY,+Y,-10,-14,-17,+20,+21,+mar1,+mar2; had an increased number of copies of almost all studied genes, except for CCND1, EEF1A2, NKX2-1, and NKX2-8.