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Acute Lymphocytic Leukemia (ALL)

Acute lymphocytic leukemia (ALL) is a cancer of the blood in which immature cells called "blasts" overtake a person's bone marrow. ALL is the most common type of childhood cancer, but it is more common in adults.

Because ALL progresses rapidly, once a person is diagnosed with the disease, they must begin treatment as soon as possible.

ALL can be characterized into subtypes based on the presence of the Philadelphia chromosome, which was discovered at Penn Medicine. Knowing the type of ALL can help customize a treatment plan.