Acute Myeloid Leukemia Stages

Leukemia is a blood cell cancer. It occurs when the body produces an excessive number of white blood cells. These white blood cells divide quickly and prevent the growth of other cells.

Acute Myeloid (Myelogenous) Leukemia (AML)






AML begins in your bone marrow and is that the commonest sort of leukemia. It occurs in both children and adults. As new white blood cells are produced, AML will rapidly progress throughout the body if not treated.

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When you have cancer, you’ll typically determine what “stage” the disease is in. This stage is typically based tumor growth and development for many sorts of cancer.

Stages of AML

Staging may be a means doctors use to explain solid cancerous tumors like breast or carcinoma . It helps doctors plan the most appropriate treatment. Staging describes how far cancer has progressed and which parts of the body it has affected. Doctors typically allocate specific stages to these cancers, ranging from 0 to 4 or 0 to IV. However, that’s not always true for leukemia.

Acute Myeloid (Myelogenous) Leukemia (AML)

As a result of the sudden onset of this form of leukemia, the cancer cells expand and spread quickly. AML is more common in adults than children. AML in children has a much better prognosis than AML in adults.

Doctors don’t stage adult AML. Instead, they classify it as untreated, arrested , or recurrent:


  • Untreated: The cancer was just recently discovered, and only the symptoms are being addressed. There is an abnormal complete blood count, and a minimum of 20% of the bone marrow cells are leukemia cells (blasts). The person usually has symptoms.
  • In remission: After surgery, the complete blood count is normal, and there are less than 5% blast cells in the bone marrow. There are not any symptoms or other signs of leukemia.
  • Recurrent: The cancer has come in either the blood or the bone marrow.

Doctors classify childhood AML similarly:

    • Newly diagnosed: There are two possibilities. Blast cells make up more than 20% of a child’s bone marrow cells. Or, but 20% are blast cells, but there are changes within the chromosomes known to cause or increase the danger of developing AML.







  • In remission: the kid features a nearly normal complete blood corpuscle count and fewer than 5% blast cells within the bone marrow. There are no other signs of leukemia

AML is divided into subtypes. The maturity of the leukemia cells and where they originated from in your body was used to assess the subtypes.

AML can be divided into subtypes in two ways. The French-American-British (FAB) system was developed within the 1970s and divides AML into nine subtypes:

  • M0: undifferentiated acute myeloblastic leukemia
  • M1: acute myeloblastic leukemia with minimal maturation
  • M2: acute myeloblastic leukemia with maturation
  • M3: acute promyelocytic leukemia
  • M4: acute myelomonocytic leukemia
  • M4 eos: acute myelomonocytic leukemia with eosinophilia
  • M5: acute monocytic leukemia
  • M6: acute erythroid leukemia
  • M7: acute megakaryoblastic leukemia

These subtypes are supported where the leukemia began. Subtypes M0 through M5 begin in the WBCs. Subtype M6 begins in RBCs, while stage M7 begins in platelets.

Since FAB subtypes aren’t used for staging, a higher number doesn’t necessarily imply a bad prognosis. The FAB subtype, on the other hand, has an effect on your chances of survival:

  • High survival rate. You’ll generally have a far better prognosis if your AML subtype is M1, M2, M3, or M4eos. Subtype M3 has the very best survival rate of all FAB AML subtypes.
  • Average survival rate. AML survival rates are typical for subtypes M3, M4, and M5.
  • Low survival rate. People with subtypes M0, M6, and M7 have a worse prognosis because these subtypes have a lower survival rate than the typical for all AML subtypes.

FAB subtypes are still widely wont to classify AML. However, in recent years, the planet Health Organization (WHO) has weakened AML into further subtypes. WHO subtypes check out the explanation for the AML and the way it affects your prognosis.

WHO subtypes include:

  • AML with certain genetic abnormalities
  • AML associated with previous chemotherapy or radiation treatments
  • AML associated with the disruption of blood corpuscle production (myelodysplasia)
  • AML that doesn’t fit into one among the three groups above

Inside each WHO subtype, there are several AML subtypes. For example, each chromosomal abnormality which will cause AML has its own subtype with certain genetic abnormalities. Your WHO subtype are often used along side your FAB subtype to assist your doctor develop a treatment plan which will work best for your situation.

The takeaway








Cancer staging helps doctors find out the simplest treatment plan for your specific case. Leukemia is staged differently than other cancers because it shows up within the blood rather than with tumors.

Lower or early stages are associated with higher survival rates, while more advanced stages are associated with a lower survival rate. Even though the staging looks different than with other sorts of cancer, leukemia staging may be a very helpful tool to work out the simplest treatment for you

Mayo Clinic

Acute Myeloid Leukemia Stages

Acute Myeloid Leukemia Stages

Acute Myeloid Leukemia Stages