FIGURE 1.
Immunohistochemistry of CD10+ mantle cell lymphoma. Representative lymph node biopsy demonstrates (A) morphologic features of the mantle cell lymphoma (H&E, x1,000) with immunostaining (B) positive for CD5, (C) positive for cyclin D1, (D) Variabily positive for CD10, (E) negative for CD23, (F) Elevated Ki-67 proliferation index (Overall 40%–70%).
