Can i wear bandages around my arm/shoulder to a mammogram?

They won't get in the way as they're over your arm/shoulder, not your breasts.

Only a problem if they prevent each breast to be gently but firmly squashed between two flat plates on the mammography x-ray machine in order to get an image through each of them in turn.

Yes. Why do you think that the arm/shoulder are part of the breast? Most bandaging is transparent to x-rays anyway. If they need it removed for some odd reason they will do so then.

sure can
the bandages are not in the X-ray area