A member asked:

I had xray for my severe hip pain and blood tests but all clear. what could it be and why are they doing an mri?

6 doctors weighed in across 2 answers

Diagnosis: Your provider may be looking for a subtle fracture that might not be visible on regular x-rays. There are other conditions such as osteonecrosis (death of part of the bone in the ball portion of the joint), infection, tumors, impingement, bursitis that may be found on mri.

Answered 3/7/2013

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X-ray not perfect: As with all tests in medicine, the xray may not detect every kind of abnormality. You may have a subtle stress fracture which would only be visible by mri. Also, MRI looks at the labrum (cushion in the hip joint) which the xray cannot see. You may also have a tendon or ligament abnormality which the xray cannot detect.

Answered 6/10/2014

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