plasma cell tumor

(PLAZ-muh sel TOO-mer)
A tumor that begins in plasma cells (white blood cells that produce antibodies). Multiple myeloma, monoclonal gammopathy of undetermined significance (MGUS), and plasmacytoma are types of plasma cell tumors.
Multiple Myeloma/Other Plasma Cell NeoplasmsMieloma m??ltiple y otras neoplasias de c??lulas plasm??ticas