French-American-British (FAB) classification of acute myeloblastic leukemia (AML).
|
FAB subtypes |
Name |
|
M0 |
Minimally differentiated AML |
|
M1 |
AML without maturation |
|
M2 |
AML with maturation |
|
M3 |
Acute promyelocytic leukemia (APL) |
|
M4 |
Acute myelomonocytic leukemia |
|
M4 eos |
Acute myelomonocytic leukemia |
|
M5 |
Acute monoblastic/monocytic leukemia |
|
M6 |
Acute erythroid leukemia |
|
M7 |
Acute megakaryoblastic leukemia |
• Subtypes M0 to M5 all start in immature forms of white blood cells (WBC).
• Subtype M6 AML starts in very immature forms of red blood cells (RBC).
• Subtype M7 AML starts in immature forms of cells that make platelets.