WHO classification of leukemia is based on?

WHO classification of leukemia is based on?

The French-American-British (FAB) classification system is based on morphology to define specific immunotypes. The World Health Organization (WHO) classification reviews chromosome translocations and evidence of dysplasia.

How do you classify acute leukemia?

Four major groups of acute myeloid leukemia are recognized: 1) Acute myeloid leukemias with recurrent genetic abnormalities, 2) Acute myeloid leukemia with multilineage dysplasia, 3) Acute myeloid leukemias, therapy related, and 4) Acute myeloid leukemia not otherwise categorized.

What is the most common presentation of acute erythroid leukemia?

The most common presenting symptoms are as follows:

  • Fatigue or malaise.
  • Minimal-to-modest weight loss.
  • Easy bruising.
  • Fever.
  • Bone or abdominal pain.
  • Dyspnea.
  • Meningeal signs and symptoms (very rare, only if leukemic involvement of the central nervous system [CNS] is present)

How I treat acute erythroid leukemia?

Treatment. Treatment for erythroleukemia generally follows that for other types of AML, not otherwise specified. It consists of chemotherapy, frequently consisting of cytarabine, daunorubicin, and idarubicin. It can also involve bone marrow transplantation.

What is pure erythroid leukemia?

Pure erythroid leukemia (PEL), a rare hematological malignancy, is defined as the presence of >80% of proliferating erythroblasts among all nucleated bone marrow cells. According to the classification by the World Health Organization in 2008, PEL is classified as acute myeloid leukemia (AML) not otherwise specified.

How are the different types of leukemia classified?

Doctors classify leukemia based on its speed of progression and the type of cells involved. The first type of classification is by how fast the leukemia progresses: Acute leukemia. In acute leukemia, the abnormal blood cells are immature blood cells (blasts).

What kind of leukemia is in the bone marrow?

Types of leukemia. Lymphocytic leukemia (also known as lymphoid or lymphoblastic leukemia) develops in the white blood cells called lymphocytes in the bone marrow. Myeloid (also known as myelogenous) leukemia may also start in white blood cells other than lymphocytes, as well as red blood cells and platelets.

What are the abnormal blood cells in acute leukemia?

Acute leukemia. In acute leukemia, the abnormal blood cells are immature blood cells (blasts). They can’t carry out their normal functions, and they multiply rapidly, so the disease worsens quickly. Acute leukemia requires aggressive, timely treatment.

When did the World Health Organization classify leukemia?

This article summarizes the most recent version (2008) of the World Health Organization (WHO) classification of leukemia and the closely related myelodysplastic syndromes (MDS), and also summarizes likely changes in the 2017 update.

What are the classifications of leukemia?

There are two main classifications of leukemia, acute leukemia and chronic leukemia. Within each of these categories, the cancerous cell type determines the type of either acute or chronic leukemia.

What are the most common types of leukemia?

The major types of leukemia are: Acute lymphocytic leukemia (ALL). This is the most common type of leukemia in young children. ALL can also occur in adults. Acute myelogenous leukemia (AML). AML is a common type of leukemia. It occurs in children and adults. AML is the most common type of acute leukemia in adults.

What is Stage 1 leukemia?

Stage 1. The lymphocyte counts in the blood are higher than normal. The numbers of red blood cells and platelets are normal. Some lymph nodes are enlarged, but the spleen and liver are not enlarged. Stage 1 CLL is intermediate risk. This means there is a moderate chance that it will get worse.

What is the FAB classification of acute myeloid leukemia?

The French-American-British (FAB) classification system divides AML into eight subtypes, M0 through to M7, based on the type of cell from which the leukemia developed and its degree of maturity. AML of types M0 to M2 may be called acute myeloblastic leukemia .