The malignant (L&H) cells stain positively for the B-cell marker CD20. In other sections, the small lymphocytes also stain for this marker (not shown).
From Warnke, RA, Weiss, LM, Chan, JK, Cleary, ML, Dorfman, RF. Tumors of the lymph nodes and spleen. Atlas of tumor pathology (electronic fascicle), Third series, fascicle 14, 1995, Washington, DC. Armed Forces Institute of Pathology.
