ALL is short for Acute Lymphoblastic Leukemia. Acute Lymphoblastic Leukemia (ALL) and Acute Myeloid Leukemia (AML) are both types of acute leukemia. Both are cancers originating from the primitive cells in the bone marrow that produce white blood cells found in the blood. ALL originates from lymphoid cells, while AML originates from myeloid cells. The difference in their names stems from the cells from which they originate. Their treatments and follow-up care differ significantly.