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Childhood acute lymphoblastic leukaemia (ALL)
Acute lymphoblastic leukaemia (ALL) is a form of cancer that affects blood-producing cells in the bone marrow. It happens when these cells don’t mature properly, and grow too fast.
The word ‘acute’ means developing quickly, while ‘lymphoblastic’ refers to the type of white blood cell it affects. As white blood cells are part of the body’s defences, or immune system, ALL reduces the body’s ability to defend itself from infection.
In this section you can find out more about how the body works and how childhood ALL develops.
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