MULTIPLE myeloma (MM) is cancer of plasma cells. It should not be confused with bone cancer, where the cancer cells arise from the cortical (outer, hard part) part of bone while MM arises from the bone marrow (the spongy inner part of bone).
Generally MM occurs in older patients (50-70 years) and only a small number of (<5%) patients="" are="" below="" 40="" years="" of="" age.="" in="" mm,="" there="" is="" uncontrolled="" multiplication="" (proliferation)="" of="" abnormal="" plasma="" cells.="" the="" mm="" cells="" produce="" a="" large="" amount="" of="" a="" single="" type="" of="" abnormal="" antibody="" called="" paraprotein="" or="" m="" band="" protein.="">
