Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** An indolent, mature B-cell neoplasm composed of small, round B-lymphocytes. When the bone marrow and peripheral blood are involved, the term chronic lymphocytic leukemia is used. The term small lymphocytic lymphoma is restricted to cases which do not show leukemic involvement of the bone marrow and peripheral blood.

**Synonyms:** - B-cell lymphocytic leukemia/small lymphocytic lymphoma - CLL/SLL - CLL/SLL - chronic lymphocytic leukemia/small lymphocytic lymphoma