51-year-old-male, complained of low back pain and has been diagnosed as having multiple myeloma (MM), light chain disease of the lambda type. His past medical history is remarkable for a cardiac disease. The expert believes it is cardiomyopathy, which can be amyloidotic (related to the MM) or hypertensive-atherosclerotic, or combined. The patient received anti-MM induction type of treatment (VTD combination), followed by high-dose cyclophosphamide (HDC) and autologous stem cell transplantation. The patient's low platelet count is of concern.