(a)
(b)
(c)
(d)
(e)
(f)
Figure 1: Sections from an enlarged cervical lymph node. (a) Hematoxylin and Eosin staining. (b)–(f) Immunohistochemical staining for CD20 (b), CD5 (c), IgD (d), Bcl-2 (e), and CD43 (f).