What is IgM Lambda Paraprotein?
What is IgM Lambda Paraprotein?
Immunoglobulin M (IgM) paraproteinaemias comprise 15–20% of monoclonal proteins but pose unique clinical challenges. IgM paraproteins are more commonly associated with lymphoplasmacytic lymphoma than multiple myeloma and can occur in a variety of other mature B-cell neoplasms.
What is IgM monoclonal protein?
Immunoglobulin (Ig) M monoclonal gammopathy of undetermined significance (IgM-MGUS) is defined as a serum IgM monoclonal protein < 3 g/dL, bone marrow lymphoplasmacytic infiltration < 10%, and no evidence of constitutional symptoms, anemia, hyperviscosity, lymphadenopathy, or hepatosplenomegaly related to the …
What is a monoclonal paraprotein?
A paraprotein is a monoclonal immunoglobulin or light chain present in the blood or urine; it is produced by a clonal population of mature B cells, most commonly plasma cells. In individuals aged >50 years the incidence of a paraprotein is 3.2%.
What causes high paraprotein in blood?
There are different conditions that can cause a paraprotein, with the most common being monoclonal gammopathy of unknown significance (MGUS). In most cases, this is a non-cancerous condition but another, more serious, blood abnormality linked to a paraprotein is myeloma.
What does paraprotein in blood mean?
A paraprotein is an abnormal protein that is produced by plasma cells in the bone marrow. Plasma cells are specialised blood cells that usually produce a range of different proteins called immunoglobulins as part of the body’s immune system.
What is Lambda chain?
Light chains are proteins produced by immune cells called plasma cells. Also called kappa and lambda light chains, they link together with other proteins (heavy chains) to form immunoglobulins (also known as antibodies) that target and neutralize specific threats to the body such as bacteria and viruses.
