Figure 1.
Four immunoarchitectural patterns of nodal marginal zone lymphoma
(A) Diffuse pattern characterized by diffuse sheets of neoplastic cells with effacement of nodal architecture; (B) Nodular/follicular pattern characterized by distinct nodules that are well demarcated from the uninvolved interfollicular areas; (C) Interfollicular pattern characterized by neoplastic cells in the interfollicular areas that surround residual germinal centers; (D) Perifollicular pattern characterized by annular distribution of the neoplastic cells around uninvolved normal secondary follicles.
