<unk>  is an increase of abnormal white blood cells. It differs from acute leukemia, and is categorized as myelogenous or lymphocytic.<unk>  may refer to: * Chronic myelogenous leukemia * Chronic lymphocytic leukemia * Hairy cell leukemia
Chronic leukemia
Acute leukemia
Lymphoid leukemia
Acute myeloid leukemia
Chronic myelogenous leukemia
Childhood leukemia
Chronic lymphocytic leukemia
Myeloid leukemia