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Monoclonal gammopathy of undetermined significance (MGUS) is a condition in which an abnormal protein (monoclonal protein, or M protein) is in the blood. M protein is produced by plasma cells, a type of white blood cell. Monoclonal gammopathy of undetermined significance usually causes no problems. Sometimes, monoclonal gammopathy of undetermined significance is either associated with another disease or can progress over years to other disorders, including some forms of blood cancer.
If you have monoclonal gammopathy of undetermined significance, you'll usually have periodic checkups to monitor your level of M protein. If there's no increase, monoclonal gammopathy doesn't require treatment.
With close monitoring, if monoclonal gammopathy of undetermined significance does progress, you'll get earlier treatment.
Source: http://www.mayoclinic.com
Monoclonal gammopathy of undetermined significance rarely causes signs or symptoms. The condition is usually detected by chance when you have a routine blood test for another problem. However, some people may experience nerve problems, such as numbness or tingling, associated with the abnormal protein.
Source: http://www.mayoclinic.com
Monoclonal gammopathy of undetermined significance occurs when plasma cells in your bone marrow produce an abnormal protein called monoclonal protein (M protein). Plasma cells are a type of white blood cell. They are found in your bone marrow. Plasma cells produce some of the antibodies that help your body fight infection.
In the majority of people with monoclonal gammopathy of undetermined significance, the protein isn't harmful. But when too much M protein accumulates, it crowds out healthy cells in your bone marrow and can damage other tissues in your body.
Genetic changes appear to play a role in monoclonal gammopathy of undetermined significance, as do environmental triggers.
Source: http://www.mayoclinic.com
At Mayo Clinic, we take the time to listen, to find answers and to provide you the best care.
Monoclonal gammopathy of undetermined significance is usually detected during a blood test for another condition or other symptom, such as a nerve condition called peripheral neuropathy or an unexplained rash. The test, called serum protein electrophoresis (SPE), separates your blood proteins into five parts and can show any abnormal proteins as well as unusual amounts of normal proteins. Another test, the free light chain assay, is often done at the same time as the SPE, and it looks at the smaller parts of the M protein.
If your doctor detects monoclonal gammopathy, further testing may be ordered to determine what M protein your body is making and how much is being made. Your doctor also works to rule out other causes of elevated protein levels. Tests may include:
Source: http://www.mayoclinic.com
Some people with monoclonal gammopathy of undetermined significance develop a more serious condition, such as multiple myeloma or other cancers or blood disorders.
Doctors can't definitively predict who will go on to develop a more serious condition, but they can determine who has the greatest risk. Your doctor takes into account several factors when determining your risk, including:
Your risk of developing a more serious condition increases the longer you've had monoclonal gammopathy of undetermined significance. Also, the more risk factors you have, the higher your risk of developing a more serious condition.
Other complications associated with monoclonal gammopathy of undetermined significance include fractures and blood clots.
Source: http://www.mayoclinic.com
Right now, the cause of monoclonal gammopathy of undetermined significance is unknown, so there is no way to prevent monoclonal gammopathy of undetermined significance and no way to stop it from progressing to a more serious condition.
Source: http://www.mayoclinic.com
Although you can't control whether monoclonal gammopathy of undetermined significance will lead to something more serious, you can control many aspects of your health. The following suggestions may help:
Source: http://www.mayoclinic.com
Factors that increase your risk of monoclonal gammopathy of undetermined significance include:
Source: http://www.mayoclinic.com
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