Fig. 3

a DLBCL. Diffuse proliferation of medium sized to large lymphoid cells with vesicular nuclei with 2–4 nuclear, membrane-bound nucleoli (centroblasts—red arrows) or immunoblasts (large cells with single, central nucleolus) (Giemsa, magnification 40x). b MALT lymphoma. Predominate medium sized lymphocytes with round nuclei resembling those of centrocytes, in between are scattered large transformed cells (Giemsa, magnification 40x)