A member asked:

4%plasma cells in bone marrow biopsy-how serious is it?

A doctor has provided 1 answer

Can be normal.: Up to 5% is normal as long as they are not "monoclonal" meaning derived from a cell. If monoclonal then a bone cancer called myeloma needs to be ruled out. If no bone disease, anemia, high calcium or kidney disease answer is MGUS, a pre-cancerous condition with low risk of progression (less than 1% per year).

Answered 1/5/2019

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