Lymphocytes may crowd out other blood cells in the blood and bone marrow. If the bone marrow cannot make enough red blood cells to carry oxygen, then anemia may develop. If the bone marrow cannot make enough platelets to make the blood clot normally, the bleeding or bruising may develop more easily. The cancerous lymphocytes can also invade other organs, the spinal cord, and the brain. ALL progresses quickly and can occur in adults and children.
Treatment is different for adults than it is for children.
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