Leukemia, Lymphocytic, Chronic, B-Cell

**Definition:** 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.

**Tree numbers:** - C04.557.337.428.080.125 - C15.378.508.428.080.125 - C15.604.515.560.080.125 - C20.683.515.528.080.125 - C23.550.291.500.483

**Synonyms:** - Lymphoma, Lymphocytic - Small-Cell Lymphoma - Lymphoma, Small-Cell - B-Lymphocytic Leukemia, Chronic - Leukemia, B Cell, Chronic - B-Cell Leukemia, Chronic - Leukemia, B-Cell, Chronic - Leukemia, Lymphocytic, Chronic, B Cell - Lymphocytic Leukemia, Chronic, B Cell - Lymphocytic Leukemia, Chronic, B-Cell - Lymphocytic Leukemia, Chronic - Leukemia, Lymphocytic, Chronic - Leukemia, Lymphoblastic, Chronic - Lymphoblastic Leukemia, Chronic - Diffuse Well-Differentiated Lymphocytic Lymphoma - Lymphocytic Lymphoma, Diffuse, Well Differentiated - Lymphoma, Lymphocytic, Diffuse, Well Differentiated - Lymphocytic Lymphoma, Diffuse, Well-Differentiated - Lymphoma, Lymphocytic, Diffuse, Well-Differentiated - Lymphocytic Lymphoma, Well Differentiated - Lymphoma, Lymphocytic, Well Differentiated - Lymphocytic Lymphoma, Well-Differentiated - Lymphoma, Lymphocytic, Well-Differentiated - Lymphoma, Lymphoplasmacytoid, CLL - Lymphoplasmacytoid Lymphoma, CLL - Lymphoma, Small Lymphocytic - Lymphoma, Small Lymphocytic, Plasmacytoid - B-Cell Chronic Lymphocytic Leukemia - Chronic Lymphocytic Leukemia - Leukemia, Chronic Lymphocytic, B-Cell - B-Cell Malignancy, Low-Grade - Disrupted In B-Cell Malignancy - Leukemia, Chronic Lymphocytic - Lymphocytic Lymphoma - Leukemia, Chronic Lymphatic