PMC6247723_01
(a) Large atypical lymphoid tumor cells with plasmacytoid morphology, abundant cytoplasm, and eccentric large nuclei with vesicular chromatin, some of which demonstrate nucleoli (H&E 40x). (b) Tumor cells were negative for CD20 antigen. Some positive reactive B lymphocytes can be discerned. Intense, uniform immunoreactivity for plasmacytoid differentiation-associated antigens CD138 (c) and MUM-1 (d). (e) EBER in situ hybridization was negative.
CRIHEM2018-2525070.001.jpg
PMC6247723_01_CRIHEM2018-2525070.001.jpg
fig1
MYC expression was not assessed (Figure 1).