A rapidly progressing cancer that starts in blood-forming tissue such as the bone marrow, and causes large numbers of white blood cells to be produced and enter the blood stream.

Cancer of bone marrow cells that progresses rapidly.

A quickly progressing cancer of the blood that makes the body produce too many cancerous white blood cells.

A rapidly progressing leukemia.

A rapidly progressive malignant disease of the bone marrow and blood that results in the accumulation of immature, functionless cells called blast cells in the marrow and blood. The accumulation of blast cells in the marrow blocks normal blood cell development. As a result, red cells, white cells and platelets are not produced in sufficient numbers. When the disease originates in a marrow lymphocyte progenitor cell, it results in acute lymphoblastic leukemia and when the disease originates in a myeloid progenitor, it results in acute myelogenous leukemia. AML has the greatest incidence of leukemia in adults, with an estimated 10,000 new cases per year in all age groups. ALL is the most common type of childhood leukemia, with 3,000 new cases per year in all age groups.

Cancer of the white blood cells (leukemia) that characteristically comes on abruptly and, if not treated, progresses rapidly. The two major types of acute leukemia are acute lymphoblastic leukemia (ALL) and acute myelocytic leukemia ( AML ). See the entire definition of Acute leukemia

A rapidly progressing cancer of the bone marrow and other blood-forming tissues.

A type of leukemia !-- .featuredtable { width: 197px; float: right; margin: 8px; margin-right: 0px; } -- that develops rapidly, with many abnormal cells being made quickly.

Cancer of the blood-forming tissue that progresses rapidly.

A rapidly progressing cancer of the blood-forming tissue (bone marrow).