We’ll help you understand multiple myeloma.
Diagnosis and what to expect
See how doctors diagnose MM.
Multiple myeloma is a blood cancer that affects plasma cells made in the bone marrow. These cells are part of the immune system.
At first, there may be no symptoms. If symptoms do occur, they include, but aren’t limited to, bone pain or weakness, infections, tiredness, dizziness, or shortness of breath.
Doctors diagnose MM through biopsy and imaging tests and possibly biomarker testing.
Have you asked about biomarker testing?
Biomarker testing can help your care team design a treatment plan tailored to you. We’ll help you build a discussion guide you can take to your next visit.
Not all MM types are the same.
Different tests may be used to identify the type of MM you have. Biomarker testing may also be used to further determine type.
Knowing your type helps you understand your cancer and your treatment plan.
Here are some, but not all, of the types you may hear about.
Active myeloma
White blood cells in your bone marrow make antibodies called immunoglobulins to help fight infection. When you have MM, your plasma cells make too many of these antibodies and they become abnormal.
Testing for these antibodies helps show the type of active MM you have.
- IgG myeloma: Approximately 65% of patients have IgG myeloma
- IgA myeloma: This is the second-most common type. Patients sometimes have tumors outside of the bone
- IgD, IgE, and IgM myelomas: These types are very rare. IgD myeloma can be accompanied by plasma cell leukemia (PCL)
Light chain myeloma
Light chain myeloma is the third most common type, making up about 15% of cases. In this type, cancerous cells produce incomplete antibodies.
Normally, antibodies have two kinds of chains, light and heavy. In light chain myeloma, only light chains are produced.
Nonsecretory myeloma
This rare form makes up 3%-5% of cases. Nonsecretory myeloma cells don’t make or release (secrete) any extra antibodies making them harder to detect with standard blood or urine tests.
Instead, doctors may use a serum free light chain test to accurately test a blood sample before making a diagnosis.
MM stages
Staging defines how far the cancer has grown or spread, from early-stage to more advanced. Staging MM can be challenging for two reasons:
- Symptoms may not be felt before MM reaches an advanced stage
- Doctors may use one of two different staging systems
Your doctor will measure your stage based on the amount of certain proteins in the blood and on specific gene changes in the cancer cells.
Ways to work with your care team
From questions to clarity, your doctor can help.
Diagnosis, testing, and treatment types can bring lots of questions. We can help prepare you to get the most out of your conversations.
Get answers about your diagnosis.
- What type of cancer do I have?
- Has it spread or grown?
- What stage is my cancer?
Talk about your treatment plan.
- What types of treatment are used for my cancer?
- If biomarker testing was done, how do the results impact my treatment plan?
- What are the goals of my treatment plan?
Ask about support and resources.
- What support services are available?
- Who can help me navigate care and next steps?
- Who on my care team can I reach out to when I have questions?
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