Can you have enthesopathy and have a normal mri? Have arthritis and normal mri? What kind of arthritis don't show up on mri?

Yes. Mri is sensitive to edematous (swelling) and inflammatory changes in joints and tendons but is dependent upon the severity of the disease and the type of MRI done. Ideally, fat suppression t2 images or stir images need to be performed by the MRI center to see these changes if the disease is early or not severe. At 27 Y.O., it may be to early to see MRI changes although symptoms may be present.