Composite t(14;18)-Negative Follicular Lymphoma and Nodular Lymphocyte-Predominant Hodgkin Lymphoma

Figure 2

Follicular lymphoma. (a) H&E staining, low power, showing pronounced nodular effacement by closely packed nodules lacking mantle zones. (b) H&E staining, high power, showing neoplastic follicle containing centroblasts (>15 per HPF). Immunostaining for (c) CD20 and (d) CD10 showing follicle positivity.

(a)

(b)

(c)

(d)