William Aird/X
Jul 30, 2026, 13:32
William Aird: Interpreting Polyclonal Gammopathy
William Aird, Professor of Medicine at Harvard Medical School, shared a post on X:
“Polyclonal Gammopathy
A broad gamma-region peak on SPEP reflects increased production of many different immunoglobulins by many different plasma-cell clones.
Think inflammation, infection, autoimmune disease, liver disease, IgG4-related disease, and other reactive states.”

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