How is leukemia diagnosed?

Written by Li Fang Fang

Hematology

Updated on September 22, 2024

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When a routine blood test suggests the possibility of leukemia, further diagnostic tests such as bone marrow aspiration, biopsy, and immunophenotyping are required to confirm the diagnosis. Leukemia can be divided into acute leukemia and chronic leukemia. Acute leukemia includes acute myeloid leukemia and acute lymphoblastic leukemia. Acute myeloid leukemia is further categorized into eight types, from M0 to M7. Acute lymphoblastic leukemia is divided into three subtypes: L1 to L3. Chronic leukemia can be divided into chronic myeloid leukemia and chronic lymphocytic leukemia.

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Written by Li Bao Hua

Dentistry

1min 4sec

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Is bleeding gums leukemia?

Gum bleeding is not necessarily leukemia; it could also be gingivitis, periodontitis, or other diseases of the hematopoietic system. Gum bleeding is a common clinical symptom of gingivitis, caused by irritants like dental plaque and tartar around the teeth, keeping the gum tissue in a congested state. If persistent, this can lead to gum bleeding. This condition can be improved by dental cleaning, followed by medicated rinses around the teeth. If the situation does not improve, it may be due to periapical abscess caused by periapical inflammation of the tooth, which can also result in gum bleeding. In this case, root canal treatment is required, and once the inflammation in the root canal is controlled, the gum bleeding may alleviate on its own. If neither of these treatments is effective, it could be due to an underlying hematopoietic system disease, which would require further examination.

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Written by Li Fang Fang

Hematology

1min 3sec

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Symptoms of leukemia

The symptoms of leukemia can be categorized into four main types: infections, anemia, bleeding, and organ infiltration. Infections occur due to a decrease in neutrophils, leading to poor resistance of the body and can trigger infections in various parts, such as lung infections, gastrointestinal infections, urinary system infections, etc. Anemia is caused by the growth of leukemia cells, which leads to limited erythropoiesis in the bone marrow, resulting in symptoms such as dizziness, headache, fatigue, poor appetite, and decreased tolerance to activity. Bleeding is due to a significant reduction in platelets in leukemia patients, making spontaneous bleeding more likely, which can manifest as bleeding from the skin and mucous membranes, organ bleeding, etc. Tumor infiltration can lead to abnormalities in other organs.

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Written by He Li Fang

Hematology

53sec

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Causes of Chronic Myeloid Leukemia

Chronic granulocytic leukemia, also known as chronic myeloid leukemia, is a myeloproliferative tumor originating from pluripotent stem cells. It is characterized by a specific chromosomal alteration, commonly referred to as the Philadelphia chromosome, which is formed by the translocation of chromosomes 9 and 22, resulting in the formation of the BCR-ABL fusion gene at the molecular level. Chronic granulocytic leukemia is a clonal disease originating from pluripotent stem cells. Due to a significant expansion of the progenitor cell pool, there is excessive proliferation of myeloid cells and increased granulocyte production. The slow clearance of granulocytes leads to the accumulation of granulocytes in the body, which is the main cause of the disease.

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Written by He Li Fang

Hematology

1min 18sec

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What is leukemia?

Leukemia is a malignant tumor of the hematopoietic system that originates from hematopoietic stem/progenitor cells. It involves leukemia cells that have proliferative and survival advantages, proliferating and accumulating uncontrollably in the body, gradually replacing normal hematopoiesis to form pathological hematopoiesis. Furthermore, it invades other organs and systems, leading to symptoms such as anemia, bleeding, and infections, which eventually cause death. The incidence of leukemia is 4.8/100000-7.1/100000 in males and 3.2/100000-4.6/100000 in females, with significant variations in incidence, mortality rates, and distribution among different types of leukemia and various regions and ethnic groups. Early on, it was recognized that leukemia is not an inflammation, and the views that leukemia is caused by a lack of certain substances have been proven incorrect. Currently, it is understood that the causative factors of leukemia are related to infections, radiation, chemical agents, lifestyle, and genetics.

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Written by Yan Xin Liang

Pediatrics

36sec

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Early symptoms of childhood leukemia

Generally speaking, leukemia can manifest symptoms related to a decrease in all three blood cell lines. Changes in these three lines typically include an increase or decrease in white blood cells, a decrease in red blood cells leading to symptoms of anemia, and a reduction in platelets, resulting in symptoms of bleeding. Children with leukemia often experience recurrent fevers and are prone to infections, as well as bleeding gums. There may also be enlargement of the liver, spleen, and lymph nodes, along with pallor of the face and lips, which appear pale and bloodless.