Leukemia, B-Cell [Disease/Finding] Leukemia, Lymphocytic, Chronic, B-Cell [Disease/Finding] Diffuse Well-Differentiated Lymphocytic Lymphoma Lymphocytic Lymphoma, Diffuse, Well-Differentiated Lymphocytic Lymphoma, Well Differentiated Lymphocytic Leukemia, Chronic, B-Cell Lymphoma, Lymphocytic, Diffuse, Well Differentiated Leukemia, Lymphocytic, Chronic, B Cell Lymphoma, Small Lymphocytic Leukemia, Lymphocytic, Chronic, B-Cell Leukemia, Lymphoblastic, Chronic Lymphoblastic Leukemia, Chronic D015451 Lymphocytic Lymphoma, Well-Differentiated Lymphoma, Lymphocytic N0000003248 M0023808 C6674 Leukemia, B Cell, Chronic Lymphoma, Lymphocytic, Diffuse, Well-Differentiated 1021888 Lymphoma, Lymphocytic, Well Differentiated Chronic Lymphocytic Leukemia Lymphoma, Lymphoplasmacytoid, CLL Lymphocytic Lymphoma A chronic leukemia characterized by abnormal B-lymphocytes and often generalized lymphadenopathy. In patients presenting predominately with blood and bone marrow involvement it is called chronic lymphocytic leukemia (CLL); in those predominately with enlarged lymph nodes it is called small lymphocytic lymphoma. These terms represent spectrums of the same disease. Lymphoma, Small-Cell Small-Cell Lymphoma Lymphocytic Leukemia, Chronic Leukemia, Lymphocytic, Chronic Leukemia, B-Cell, Chronic Leukemia, Lymphocytic, Chronic, B-Cell B-Cell Chronic Lymphocytic Leukemia Lymphocytic Lymphoma, Diffuse, Well Differentiated B-Cell Leukemia, Chronic Lymphoma, Lymphocytic, Well-Differentiated 277473004 B-Lymphocytic Leukemia, Chronic Lymphoma, Small Lymphocytic, Plasmacytoid Lymphoplasmacytoid Lymphoma, CLL C0023434 Lymphocytic Leukemia, Chronic, B Cell