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Finger drop in a patient with rheumatoid arthritis
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I wish to comment on the case report by McDonald and Smith.1 Although the authors report that a tomographic arthrogram showed no cystic extension of the joint capsule, the two figures are almost identical with those previously seen in antecubital cysts in rheumatoid arthritis.2 These ‘cysts’ are corollaries to the popliteal cysts and are generally …

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