Tests and diagnosis
By Mayo Clinic staffIf you have signs or symptoms of acute myelogenous leukemia, your doctor may recommend you undergo diagnostic tests, including:
- Blood tests. Most people with acute myelogenous leukemia have too many white blood cells, not enough red blood cells and not enough platelets. The presence of blast cells — immature cells normally found in bone marrow but not circulating in the blood — is another indicator of acute myelogenous leukemia.
- Bone marrow test. A blood test can suggest leukemia, but it usually takes a bone marrow test to confirm the diagnosis. During a bone marrow biopsy, a needle is used to remove a sample of your bone marrow. Usually, the sample is taken from your hipbone (posterior iliac crest). The sample is sent to a laboratory for testing.
- Spinal tap (lumbar puncture). In some cases, it may be necessary to remove some of the fluid around your spinal cord to check for leukemia cells. Your doctor can collect this fluid by inserting a small needle into the spinal canal in your lower back.
If your doctor suspects leukemia, you may be referred to a doctor who specializes in cancer (oncologist) or a doctor who specializes in blood and blood-forming tissues (hematologist).
Determining your AML subtype
If your doctor determines you have AML, you may need further tests to determine the extent of the cancer and classify it into a more specific AML subtype. In AML, the subtypes are based on:
- The specific types of cells involved in the leukemia
- How mature the cancer cells are at the time of diagnosis
- How different the cancer cells are from normal cells
- The number and location of specific changes within the cancer cells' DNA
Your AML subtype helps determine which treatments may be best for you. Doctors are studying how different types of cancer treatment affect people with different AML subtypes.
- Appelbaum FR. Acute myeloid leukemia in adults. In: Abeloff MD, et al. Abeloff's Clinical Oncology. 4th ed. Philadelphia, Pa.: Churchill Livingstone; 2007:2215.
- Miller KB, et al. Clinical manifestations of acute myeloid leukemia. In: Hoffman R, et al. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa.: Churchill Livingstone; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=aboutPage&decorator=header&eid=4-u1.0-B978-0-443-06715-0..X5001-8--TOP&isbn=978-0-443-06715-0&uniq=203948673. Accessed June 2, 2010.
- Rowe JM, et al. Therapy for acute myeloid leukemia. In: Hoffman R, et al. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa.: Churchill Livingstone; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=aboutPage&decorator=header&eid=4-u1.0-B978-0-443-06715-0..X5001-8--TOP&isbn=978-0-443-06715-0&uniq=203948673. Accessed June 2, 2010.
- Adult acute myeloid leukemia treatment. National Cancer Institute. http://www.cancer.gov/cancertopics/pdq/treatment/adultAML/patient/allpages. Accessed June 3, 2010.
- Leukemia — acute myeloid — AML. Cancer.Net. http://www.cancer.net/patient/Cancer+Types/Leukemia+-+Acute+Myeloid+-+AML. Accessed June 3, 2010.
- Integrative medicine & complementary and alternative therapies as part of blood cancer care. The Leukemia & Lymphoma Society. http://www.leukemia-lymphoma.org/attachments/National/br_1150734030.pdf. Accessed June 3, 2010.

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