A plasmacytoma is a tumor made of abnormal plasma cells. Plasma cells are immune cells that normally live in the bone marrow and make antibodies, also called immunoglobulins, to fight infection. In a plasmacytoma, a single abnormal plasma cell multiplies and forms a mass in one place. A plasmacytoma is a cancer, but when it …
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A plasma cell neoplasm is a group of related diseases that begin when plasma cells, a type of immune cell found in the bone marrow, start growing abnormally. Normal plasma cells make immunoglobulins (antibodies) that help the body fight infections. In a plasma cell neoplasm, one group of plasma cells grows more than it should …
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