My mother completed 25 sessions of radiation to the spinal region in which her plasmacytoma was found. She had an M-spike of 0.3 g/dl at the time of diagnosis.
It has been 3 weeks since her radiation and her blood work showed that her M-spike has stayed at 0.3 g/dl (3 g/L). I have heard of an M-spike taking some time to decrease after radiation in plasmacytoma cases. Her oncologist feels it may just be too soon after radiation to tell.
He did say that if the M-spike stays the same, he will consider her case to be 'MGUS with plasmacytoma'. He still feels this is not multiple myeloma. I should add that her calcium is normal, no anemia, no kidney dysfunction, and her previous bone marrow biopsy came back at 5% plasma cells (no abnormal/clonal cells present). Her kappa light chains are slightly elevated, causing her ratio to be 2.30.
Thank you in advance!
