(who, 2001) Malignant neoplasm of plasma cells usually arising in the bone marrow and manifested by skeletal destruction, bone pain, and the presence of anomalous immunoglobulins
[icd9data.com]
Bone problems. Multiple myeloma can also affect your bones, leading to bone pain, thinning bones and broken bones. Reduced kidney function.
[mayoclinic.org]
Eventually, myeloma causes a wide range of problems, including: a persistent bone pain, usually in the back, ribs or hips tiredness, weakness and shortness of breath – caused
[nhs.uk]