Follicle center cell lymphoma, double staining for CD20 (L26) and EBERs. The large, atypical EBER-positive blasts in the center of a neoplastic follicle do not express CD20. These cells were also negative for UCHL-1. Case no. 11, original magnification ×400. Inset, occasionally smaller cells (arrow) showed coexpression of EBERs and CD20. Original magnification ×1000.