Monoclonal Gammopathy of Undetermined Significance

**Semantic type:** Neoplastic Process

**Definition:** A condition in which an abnormal amount of a single immunoglobulin is present in the serum. This category includes IgM monoclonal gammopathy of undetermined significance and non-IgM monoclonal gammopathy of undetermined significance. Up to 25% of cases of monoclonal gammopathy of undetermined significance progress to a B-cell malignancy or myeloma.

**Synonyms:** - MGUS - MGUS - MGUS - MGUS - Monoclonal Gammopathy of Undetermined Significance (MGUS) - Monoclonal gammopathy of undetermined significance - Monoclonal gammopathy of undetermined significance (MGUS) - monoclonal gammopathy of undetermined significance