Leukemia - 1/23/11 Per: 2nd Leukemia Characteristics...

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1/23/11 Per: 2 nd Leukemia Characteristics Leukemia, cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) Excessive production of immature or mature leukocytes (white blood cells; see blood) and consequently a crowding-out of red blood cells and platelets Causes/Risk Factors Smoking Exposure to Atomic Bomb Radiation Previous Chemotherapy or Radiation Therapy Human T-Cell Leukemia Virus Myelodysplasctic Syndrome Downs Syndrome Signs and Symptoms Fatigue Abnormal bleeding Recurrent Infections Bone and Joint Pain Swollen Lymph Nodes Difficulty Breathing or Dyspnea Malaise (vague feeling of bodily discomfort) Diagnosis The diagnosis of leukemia is based on the results of both blood and bone marrow tests, such as bone marrow aspiration and bone marrow biopsy. Bone marrow aspiration: Before insertion of the bone marrow aspiration needle, the aspiration site is numbed with anesthesia. During this procedure, a sample of
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Leukemia - 1/23/11 Per: 2nd Leukemia Characteristics...

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