Updated 28 July 2008
All of these must be present:
- Serum monoclonal paraprotein
- No lytic bone lesions
- Bone marrow plasma cell proportion less than 10%
Usually the paraprotein type is IgG or IgA and the level is less than 30 g/L and the levels of the uninvolved immunoglobulins are normal, however, in up to 25% of cases of MGUS one or more of the uninvolved immunoglobulins may be below normal.
