The magnetic resonance imaging features of the wrist of a patient suffering from the arthropathy of haemochromatosis are presented. It is apparent that the deposition of iron within the bone marrow is focal in origin and may be associated with cyst formation. In addition, changes in serum ferritin levels with treatment suggest that the deposition is irreversible. Studies of two other patients with haemochromatosis without cyst formation in the wrists did not yield similar artefacts, in spite of having high ferritin levels and arthritis.
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