I had 10 treatments with beam radiation for a large lytic lesion in my spine. It was so big it fractured my bone and I had a cord compression. I was treated with steroids and the radiation and it helped shrink it. Alternative was a kyphoplasty but I did not have it.

At first they were going to do 14 RTs on my T9 but the plasmacytoma had exuded out of the vertabrae and was quite large, my case was discussed at the local MDAnderson/Cooper in Camden NJ and then discussed at MDAnderson in Texas which is when it was upped to 24. For the record, the RT affected the T8 and T10 vertabrae as well and I developed compression fxs of those vertabrae. At the time, medical oncology testing called me MGUS so I was not on systemic therapy. That quickly changed (6 mos) to full blown MM and I was then on systemic therapy of Revlimid, Dexamethasone, and Velcade. The T8 continues to give me discomfort, particularly if I am doing something, like chopping vegetables, doing dishes, and the like but the path fx is as healed as it ever will be.
The single RT to my left pelvis was d/t a large lesion in my pelvis. When I developed a similar lesion in my rt pelvis, the RadOnc, declined RT because I was quite anemic and your pelvis is home to alot of your cell formation and he didn't want to compromise that further. I actually asked him the question "If I was your mother, what would you recommend." I really liked that RadOnc, very warm, personable and interested but I left MDAnderson for good and just go to Penn now. So my third 'round' of RT was at Penn, 5 RTs for lesions that had formed in my upper right humerus that also 'cracked' my bone. I'm still in physical therapy for this but my PET CT Scan last Monday did not show the lesions any longer, just gotta heal and get range of motion back.

I had 24 RT for a plasmacytoma at T9, which is where this all started. I had a single dose of RT in my left pelvis for a large lesion at risk for fracturing my pelvis and I have had 5 RT on my upper R humerus for lesions that caused a path fx there. Except for the 'daily grind' of going for the treatments, I had minimal problems with RT ( some esophageal irritation requiring viscous lidocaine with the T9 RT).

I had 8 radiation treatments for a lesion in my back. It is painless but tedious. You will go thru a process to mark your body where the radiation will target any lesions and avoid any other organs. My experience was good.

i assume those are the number of times like 24 on T9. i'm inquiring with a MM specialist at John Hopkins on Tuesday about the radiation for mine which is on the T9 vertebral body. atm its without compression deformity or neural compromise. i'm not sure how long that will stay that way on daratumamab and kyplilos maintenance