Does bursitis show up on an x-ray?

Sometimes. Bursitis is a focal area of inflammation that sometimes can accumulate fluid producing a lump. Ifs the inflammation is substantial it may produce finding on the x-ray. Mri is more sensitive in detecting the inflammation associated with bursitis.
No. Bursitis is inflammation of a bursa, a fluid filled sac around a joint. It is a soft tissue structure that is not seen on x-rays. Bursitis may be seen with an ultrasound.