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Understanding Myelodysplastic Syndromes: Symptoms, Diagnosis, and Treatment Options

Jerome Albert Ecker | MD

Medically reviewed by Jerome Albert Ecker | MD, Assistant Professor of Medicine, Duke University - Durham, NC on November 5th, 2023.

Key Takeaways

  • These disorders occur when bone marrow produces abnormal, immature blood cells that cannot function properly, affecting approximately 4 out of every 100,000 people annually with median age at diagnosis being 70.

  • Complete blood count typically shows low red blood cells (anemia below 10 g/dL), low white blood cells (under 1,800/μL), and low platelets (under 100,000/μL), creating the classic triad of fatigue, infections, and bleeding.

  • Previous chemotherapy or radiation therapy increases risk 10-fold, with secondary cases developing 2-8 years after cancer treatment and carrying a worse prognosis than primary forms.

  • Hypomethylating agents like azacitidine and decitabine can extend survival by 6-9 months compared to supportive care alone, while allogeneic stem cell transplant offers the only curative option for eligible patients under 70.

  • Bone marrow biopsy revealing dysplastic changes in cell morphology and cytogenetic abnormalities helps classify risk using the Revised International Prognostic Scoring System, determining whether patients need immediate treatment or can safely monitor.

Myelodysplastic syndromes (MDS) are a rare group of blood disorders that occur when the bone marrow fails to produce enough healthy blood cells. The bone marrow is the spongy material inside the bones responsible for creating red blood cells, white blood cells, and platelets. In MDS, the bone marrow produces low numbers of blood cells, leading to low counts of red blood cells, white blood cells, and/or platelets or defective ones, leading to various health issues. Patients with MDS are at risk for developing acute myeloid leukemia (AML).

Who Is at Risk for Myelodysplastic Syndromes?

MDS primarily affects people aged 65 and older, with men being more susceptible than women. However, younger individuals can also develop the condition. Some factors that increase the risk of developing MDS include:

  • Previous cancer therapy (chemotherapy or radiation)

  • Smoking

  • Exposure to benzene, a chemical used in plastics and dyes, heavy metals, tobacco smoke, and aggricultural chemicals/pesticides

  • Inherited conditions like Down syndrome, Fanconi anemia, and others

  • Certain blood diseases, such as paroxysmal nocturnal hemoglobinuria and congenital neutropenia

Symptoms of Myelodysplastic Syndromes

In the early stages of MDS, individuals may not experience any symptoms. As the condition progresses, the following symptoms may appear:

  • Constant fatigue and weakness due to anemia (low red blood cell count)

  • Unusual bleeding or bruising

  • Tiny red marks under the skin (petechiae)

  • Paleness

  • Shortness of breath during physical activity

  • Frequent infections

  • Bone pain

  • Mouth ulcers

  • Weight loss

Understanding Myelodysplastic Syndromes: Symptoms, Diagnosis, and Treatment Options

Diagnosing Myelodysplastic Syndromes

To diagnose MDS, your doctor will start by reviewing your medical history and conducting a physical examination. They may also perform the following tests:

  • Blood tests to count the different types of blood cells

  • Bone marrow biopsy to analyze the cells and check for genetic abnormalities

  • Genetic analysis of the bone marrow cells

Based on the results, your doctor will determine the specific type of MDS you have, which can help predict the progression of the disease and guide treatment decisions.

Treatment Options for Myelodysplastic Syndromes

The treatment for MDS depends on the type and severity of the condition. Some common treatment options include:

  • Watchful waiting for mild cases with regular check-ups

  • Low-intensity treatments:

    • Chemotherapy drugs

    • Immunosuppressive therapy

    • Blood transfusions

    • Iron chelation therapy

    • Growth factors

    • Hypomethylating agents (azacitidine, decitabine)

    • Targeted therapy (luspatercept)

  • High-intensity treatments:

    • Stem cell transplant (the only potential cure for MDS)

    • Combination chemotherapy

Your healthcare team will work with you to determine the most appropriate treatment plan based on your specific case and overall health.

If you suspect you or a loved one may have myelodysplastic syndrome, it's essential to consult a healthcare professional for an accurate diagnosis and personalized treatment plan. With proper care and management, many individuals with MDS can maintain a good quality of life.

For more information on myelodysplastic syndromes, visit:

The Bottom Line

Early recognition of persistent cytopenias (low blood counts) is crucial since 30% of cases progress to acute leukemia within 2 years without treatment. Prompt bone marrow evaluation can identify candidates for potentially life-extending therapies or curative transplant. If you're experiencing unexplained fatigue, frequent infections, or easy bruising, Doctronic can help connect you with hematology specialists for proper evaluation.

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