Also called: Multiple Myeloma;
Multiple myeloma and other plasma cell neoplasms are diseases in which the body produces too many plasma cells in the bone marrow, and these cells become abnormal. Plasma cells are cells in the immune system that make antibodies, which help the body fight infection and disease. Unlike normal plasma cells, these abnormal cells make what is known as a monoclonal protein or M protein, which is an abnormal antibody that builds up in the bone marrow.
