Chronic Myeloid Leukemia: Diagnosis and Treatments

Written by Medicover Team and Medically Reviewed by Dr Nilesh Wasekar , Hematologists

Causes
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Diagnosis
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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Chronic Myeloid Leukemia (CML) is a type of blood and bone marrow cancer that develops when the body produces an excessive number of abnormal white blood cells. It is usually caused by a genetic mutation known as the Philadelphia chromosome, which leads to uncontrolled growth of these cells. CML typically progresses slowly and may not cause noticeable symptoms in its early stages.

Common symptoms include fatigue, unexplained weight loss, fever, night sweats, and an enlarged spleen. Early diagnosis and targeted treatments, such as tyrosine kinase inhibitors (TKIs), can effectively control the disease, improve quality of life, and help many patients achieve long-term remission.

What are the Symptoms of Chronic Myeloid Leukemia?

CML often progresses slowly, and early stages may present with few or no symptoms. However, as the disease advances, symptoms become more apparent. Common symptoms include:

Fatigue: Persistent tiredness that doesn't improve with rest.
Weight Loss: Unintentional weight loss.
Night Sweats: Excessive sweating during sleep.
Fever: Unexplained fever without infection.
Fullness: A feeling of fullness or discomfort in the upper left abdomen due to an enlarged spleen.
Bone Pain: Pain or tenderness in the bones and joints.
Bleeding: Easy bruising or unusual bleeding.

Recognizing these symptoms early can facilitate timely diagnosis and treatment, potentially improving the prognosis.

What are the Causes of Chronic Myeloid Leukemia?

Chronic Myeloid Leukemia (CML) is primarily caused by a genetic mutation that occurs in the bone marrow cells. This mutation creates an abnormal chromosome called the Philadelphia chromosome, which forms the BCR-ABL gene. The BCR-ABL gene produces an abnormal protein that causes bone marrow cells to grow and divide uncontrollably, leading to an excess of abnormal white blood cells. Although the exact reason for this genetic change is often unknown, certain factors may increase the risk of developing CML.

The formation of the Philadelphia chromosome due to a genetic mutation.
The BCR-ABL gene produces an abnormal protein that promotes uncontrolled white blood cell growth.
DNA changes that occur randomly during a person's lifetime rather than being inherited.
Exposure to high levels of ionizing radiation may increase the risk of developing CML.
Increasing age, as CML is more commonly diagnosed in older adults.

When to See a Doctor for Chronic Myeloid Leukemia?

If you experience persistent symptoms such as unexplained fatigue, weight loss, frequent infections, or unusual bleeding, consult a Hematologist promptly. Early diagnosis and treatment can help control the disease, prevent complications, and improve long-term outcomes.

If you experience persistent fatigue, weakness, or reduced energy levels without a clear cause.
If you have unexplained weight loss, fever, or night sweats that continue for several weeks.
If you notice frequent infections, easy bruising, prolonged bleeding, or bleeding gums.
If you develop a feeling of fullness or pain in the upper left side of the abdomen due to an enlarged spleen.
If routine blood tests show abnormal white blood cell counts or other unexplained blood abnormalities.
If you experience persistent bone pain, joint pain, or unexplained swelling.
If you develop severe bleeding, chest pain, difficulty breathing, or sudden neurological symptoms, seek emergency medical care immediately.
If your symptoms persist or worsen, consult a Hematologist promptly for a comprehensive evaluation, appropriate investigations, diagnosis, and a personalized treatment plan.

Find Hematologists for Chronic Myeloid Leukemia Treatment Near You

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How is Chronic Myeloid Leukemia Diagnosed?

Diagnosing CML involves a combination of physical examination, blood tests, bone marrow analysis, and genetic testing to confirm the presence of the Philadelphia chromosome and BCR-ABL gene.

Physical Examination

A healthcare provider may perform a physical examination to check for signs of CML, such as an enlarged spleen or liver.

Blood Tests

Blood tests are essential for diagnosing CML. A complete blood count (CBC) can detect abnormal numbers of blood cells, while additional blood tests help evaluate disease progression.

Bone Marrow Tests

Bone marrow aspiration and biopsy are performed to confirm the diagnosis by identifying the Philadelphia chromosome and BCR-ABL gene.

How is Chronic Myeloid Leukemia Treated?

Treatment for chronic myeloid leukemia has improved significantly with targeted therapies that effectively control the disease and help many patients achieve long-term remission.

Tyrosine Kinase Inhibitors (TKIs)

TKIs are the first-line treatment for CML. These medications block the activity of the BCR-ABL protein, slowing or stopping the growth of leukemia cells.

Imatinib (Gleevec)
Dasatinib (Sprycel)
Nilotinib (Tasigna)

Chemotherapy

Chemotherapy may be recommended when targeted therapy is ineffective or during the blast crisis phase to destroy rapidly growing leukemia cells.

Stem Cell Transplant

Stem cell transplantation may be considered for selected patients, especially those who do not respond to targeted therapy. It offers the potential for long-term disease control or cure but carries significant risks.

Clinical Trials

Participation in clinical trials may provide access to new and emerging therapies. Patients should discuss available clinical trial options with their healthcare provider.

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What are the Complications of Chronic Myeloid Leukemia?

If left untreated or poorly controlled, chronic myeloid leukemia can lead to serious health complications that affect multiple body systems.

Blast Crisis

CML can progress to blast crisis, an aggressive phase resembling acute leukemia, characterized by a rapid increase in immature white blood cells.

Splenomegaly

An enlarged spleen may cause abdominal pain, discomfort, and a feeling of fullness after eating small amounts of food.

Infections

Abnormal white blood cells reduce the body's ability to fight infections, increasing susceptibility to bacterial, viral, and fungal illnesses.

Anemia

Reduced red blood cell production can lead to anemia, causing fatigue, weakness, dizziness, and shortness of breath.

How is Chronic Myeloid Leukemia Prevented?

Although there is no guaranteed way to prevent chronic myeloid leukemia, adopting healthy habits and minimizing known risk factors may help reduce the likelihood of developing the disease.

Avoid Radiation Exposure: Limit unnecessary exposure to high levels of ionizing radiation whenever possible.
Maintain a Healthy Lifestyle: Eat a balanced diet, exercise regularly, avoid smoking, and attend regular health checkups to support overall health.