A 67-year-old woman comes to the physician for a follow-up appointment. She has a 6-month history of mid-upper back pain, as well pain in her right humerus. The results of her serum protein electrophoresis performed last week are shown. “A” reflects a healthy individual; “B” is the patient.
Which of the following is most likely to be seen in this patient?
A) Bone marrow biopsy showing 6% plasma cells
B) Plasmacytoid cells of 12% in bone marrow
C) Raynaud phenomenon
D) Reduced serum parathyroid hormone
E) Systolic dysfunction
