What Conditions are Associated with Abnormal Plasma Cells?
Abnormal proliferation of plasma cells can be seen in various conditions, such as multiple myeloma, a type of cancer where malignant plasma cells accumulate in the bone marrow and produce large quantities of a single type of antibody. Other conditions include plasmacytoma and Waldenström macroglobulinemia. In autoimmune diseases, plasma cells may produce antibodies that mistakenly target the body's own tissues.