The diagnostic significance of MALAT1 has been confirmed in multiple types of tumors, including lung, liver [34]cervix [35]breast [36]colorectal [37]prostate [38]gastric [39]ovary [40]gallbladder [41]pancreas [42]bone [43] and other cancers such as glioma [44] and multiple myeloma [45]. This evidence concerns the gene MALAT1 and plasma cell myeloma.