Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) depends on: - How quickly and how low the leukemia cell count drops after the first month of treatment. - Age at the time of diagnosis, gender, race, and ethnic background. - The number of white blood cells in the blood at the time of diagnosis. - Whether the leukemia cells began from B lymphocytes or T lymphocytes. - Whether there are certain changes in the chromosomes or genes of the lymphocytes with cancer. - Whether the child has Down syndrome. - Whether leukemia cells are found in the cerebrospinal fluid. - The childs weight at the time of diagnosis and during treatment. Treatment options depend on: - Whether the leukemia cells began from B lymphocytes or T lymphocytes. - Whether the child has standard-risk, high-risk, or very highrisk ALL. - The age of the child at the time of diagnosis. - Whether there are certain changes in the chromosomes of lymphocytes, such as the Philadelphia chromosome. - Whether the child was treated with steroids before the start of induction therapy. - How quickly and how low the leukemia cell count drops during treatment. For leukemia that relapses (comes back) after treatment, the prognosis and treatment options depend partly on the following: - How long it is between the time of diagnosis and when the leukemia comes back. - Whether the leukemia comes back in the bone marrow or in other parts of the body. 
What is the outlook for Childhood Acute Lymphoblastic Leukemia ?