Figure 1

The primary central nervous system lymphomas in this study displayed characteristic large B-cell morphology, including large pleomorphic nuclei with prominent nucleoli (a) and geographic necrosis (b), as well as diffuse CD20 positivity (c).
The primary central nervous system lymphomas in this study displayed characteristic large B-cell morphology, including large pleomorphic nuclei with prominent nucleoli (a) and geographic necrosis (b), as well as diffuse CD20 positivity (c).