多发性骨髓瘤(m u ltip le m yetom a,MM或骨髓瘤)为一复杂而特殊的恶性肿瘤。据统计,其发病率(0.2~0.4/10万人口)较其它全部恶性肿瘤的总和还多,其死亡率也较其它恶性肿瘤高3~10倍,而临床诊出率则仅为其发病率的0.5%左右,误诊率高达54%~100%。因此,研究骨髓瘤的病因、病理、临 Multiple myeloma (MM or Myeloma) is a complex and specific malignancy. According to the statistics, the incidence rate (0.2-0.4 / 100000 population) is more than the sum of all other malignancies, and its mortality rate is 3 to 10 times higher than other malignant tumors, but the clinical diagnosis rate is only the incidence rate Of the 0.5%, misdiagnosis rate as high as 54% to 100%. Therefore, the study of the cause of myeloma, pathology, Pro