Figure 2

The immunohistochemical panel for case 3 (upper row) with CD10 negative (a), Bcl-6 negative (b), MUM1 positive (c) and high proliferative activity as labeled by Ki-67 (d). This case belongs to the nongerminal center B-cell-like subtype and similar findings were seen in the other 15 cases. The immunohistochemical panel for case 18 (lower row) with CD10 positive (e), Bcl-6 positive (f), MUM1 negative (g) and high proliferative activity as labeled by Ki-67 (h). This case belongs to the germinal center B-cell-like subtype.