Types of Acute Lymphocytic Leukemia (ALL)

ALL is leukemia that affects lymphocytes, a type of white blood cell. It is not a single disease, but a group of related diseases. These are the three subtypes of ALL.

• L1. This type is most common in children.

• L2. This type is most common in adults.

• L3. This is the most aggressive type and is also called Burkitt-type leukemia.

ALL can also be divided into more specific classifications.

• Early Pre-B ALL

• Common ALL

• Pre-B ALL

• Mature B-cell ALL (Burkitt-type leukemia)

• Pre-T ALL

• Mature T-cell ALL