Step 1: Classification of Chronic Leukemia.
Chronic leukemia in children is generally classified into two types:
(1) Chronic Lymphocytic Leukemia (CLL) - Rare in children, characterized by the accumulation of mature but functionally impaired lymphocytes.
(2) Chronic Myelogenous Leukemia (CML) - A hematological malignancy where there is uncontrolled proliferation of myeloid cells.