Patient group and type of leukemia	Symptoms	Signs	Laboratory findings
Children: acute lymphocytic leukemia	Infection, bleeding, weakness	Enlarged liver, spleen or lymph nodes	Variable white blood cell count, anemia, thrombocytopenia, blast cells
Adults: acute nonlymphocytic leukemia (acute myeloid leukemia)	Infection, bleeding, weakness	Enlarged liver, spleen or lymph nodes
Adults: chronic myelogenous leukemia	None, or malaise and abdominal discomfort	Enlarged spleen	Leukocytosis (myeloid precursors), normal or increased platelet count
Older adults: chronic lymphocytic leukemia	None, or nonspecific symptoms	Enlarged spleen or lymph nodes	Leukocytosis (lymphocytes)