ALL is the abbreviation for Acute Lymphoblastic Leukemia. Both Acute Lymphoblastic Leukemia (ALL) and Acute Myeloid Leukemia (AML) are types of acute leukemia. Both of these cancer types originate from primitive progenitor cells of white blood cells, which are produced in the bone marrow and found in the blood. The fundamental difference is that ALL develops from lymphoid-derived cells, while AML develops from myeloid-derived cells. This cellular distinction not only separates their names but also causes their treatment methods and follow-up processes to be significantly different.