All patients who have been recruited into, and completed, the 1 year follow up of protocol 94-AR-0194.
FOR ENTRY ONTO 98-AR-0150 JOINT MRI:
Patients currently being evaluated at the NIH through Protocol 94-AR-0194 or 98-AR-1050.
Must have at least one clinically active arthritic joint that is under consideration for percutaneous needle synovial biopsy.
No patients who have any of the following: cardiac pacemakers, auto defribrillators, neural stimulators, aneurysm clips, metallic prostheses, cochlear (ear) implants, any implanted devices (pumps, infusion devices, etc.), metal fragments in the eye, or shrapnel injuries.
No patients who exceed the size limitations of the MRI scanner.
No patients who suffer from claustrophobia.
No patients who have had a previous anaphylactoid reaction to gadolinium-based contrast material.
No patients who are currently pregnant.