A case of IgD myeloma representing a missed biclonal paraproteinemia or isotype switch in a patient previously diagnosed with IgA–lambda myeloma

Multiple myeloma is a clonal plasma cell neoplasm that is identified in the laboratory by a presence of a monoclonal immunoglobulin or increased plasma light chain levels. The most commonly identified and tested immunoglobulins are IgA, IgG and IgM. Rare cases of multiple myeloma present with monocl...

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