What are the types of ALL?

blood cells

There are various different types of ALL. Cytogenetic and immunophenotyping tests can show which type you have.

For example: 

B-cell ALL
This affects B-cell lymphocytes. This is the most common type of ALL.

T-cell ALL
This affects T-cell lymphocytes.

Philadelphia-positive ALL

The Philadelphia chromosome is an abnormal chromosome sometimes found with ALL. It can help leukaemia cells to grow. 

The Philadelphia chromosome makes a protein that in turn causes an enzyme called tyrosine kinase to make more leukaemia cells in your bone marrow. If chromosome tests show that you have the Philadelphia chromosome, you can have a targeted therapy treatment that blocks the action of the tyrosine kinase enzyme. 

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