CD5 and marginal zone lymphoma: ↑ B-cell chronic lymphocytic leukemia (CLL) cells (9)↑ normal CD5+ B lymphocytes (9)↑T-cell non-Hodgkin's lymphoma (NHL) (37) ↓B-cell lymphomas (small lymphocytic lymphoma-SLL, follicular lymphomas, marginal zone lymphoma, mantle cell lymphoma, and diffuse large B-cell lymphoma) (37)↑bone marrow and the serum of multiple myeloma patients (40)