Typical immunohistochemistry of follicular lymphoma. (A) Predominance of small centrocytes in follicular lymphoma (hematoxylin and eosin; original magnification ×400). (B) BCL2 expression in follicular lymphoma (immunohistochemical stain for BCL2; original magnification ×40). (C) Nodal architecture is effaced by follicular lymphoma (hematoxylin and eosin; original magnification ×12.5). Images supplied by Richard Burack, Wilmot Cancer Institute.