Acute Promyelocytic Leukemia – Acute Myeloid Leukemia

Also called: AML, ANLL, Acute myelogenous leukemia

Leukemia is cancer of the white blood cells. White blood cells help your body fight infection. Your blood cells form in your bone marrow. In leukemia, however, the bone marrow produces abnormal white blood cells. These cells crowd out the healthy blood cells, making it hard for blood to do its work. In acute myeloid leukemia (AML), there are too many of a specific type of white blood cell called a myeloblast.

AML is the most common type of acute leukemia in adults. This type of cancer usually gets worse quickly if it is not treated. Possible risk factors include smoking, previous chemotherapy treatment, and exposure to radiation.

Symptoms of AML include:

• Fever
• Shortness of breath
• Easy bruising or bleeding
• Bleeding under the skin
• Weakness or feeling tired
• Weight loss or loss of appetite

Tests that examine the blood and bone marrow diagnose AML. Treatments include chemotherapy, other drugs, radiation therapy, stem cell transplants, and targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells. Once the leukemia is in remission, you need additional treatment to make sure that it does not come back.

NIH: National Cancer Institute

• Acute myelogenous leukemia (AML) — children (Medical Encyclopedia)
• Acute myeloid leukemia (Medical Encyclopedia)
• After chemotherapy – discharge (Medical Encyclopedia)
• Bone marrow transplant (Medical Encyclopedia)
• Bone marrow transplant – discharge (Medical Encyclopedia)
• Understanding Chemotherapy – NIH – Easy-to-Read (National Cancer Institute) – PDF
• What to Know about External Beam Radiation Therapy – NIH – Easy-to-Read (National Cancer Institute) – PDF

Acute promyelocytic leukemia is a form of acute myeloid leukemia, a cancer of the blood-forming tissue (bone marrow). In normal bone marrow, hematopoietic stem cells produce red blood cells (erythrocytes) that carry oxygen, white blood cells (leukocytes) that protect the body from infection, and platelets (thrombocytes) that are involved in blood clotting. In acute promyelocytic leukemia, immature white blood cells called promyelocytes accumulate in the bone marrow. The overgrowth of promyelocytes leads to a shortage of normal white and red blood cells and platelets in the body, which causes many of the signs and symptoms of the condition.People with acute promyelocytic leukemia are especially susceptible to developing bruises, small red dots under the skin (petechiae), nosebleeds, bleeding from the gums, blood in the urine (hematuria), or excessive menstrual bleeding. The abnormal bleeding and bruising occur in part because of the low number of platelets in the blood (thrombocytopenia) and also because the cancerous cells release substances that cause excessive bleeding.The low number of red blood cells (anemia) can cause people with acute promyelocytic leukemia to have pale skin (pallor) or excessive tiredness (fatigue). In addition, affected individuals may heal slowly from injuries or have frequent infections due to the loss of normal white blood cells that fight infection. Furthermore, the leukemic cells can spread to the bones and joints, which may cause pain in those areas. Other general signs and symptoms may occur as well, such as fever, loss of appetite, and weight loss.Acute promyelocytic leukemia is most often diagnosed around age 40, although it can be diagnosed at any age.