Intraosseous calcifications in tophaceous gout

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Abstract
Intraosseous calcification in association with gouty arthritis was observed in six patients and a single cadaver. This finding, which is usually associated with chronic tophaceous gout, extensive articular destruction, and severe renal disease, is usually seen in the hands, wrists, and feet. It may be associated with additional calcific deposits in the adjacent soft tissues. Although the radiographic appearance of the calcification simulates that of an enchondroma or bone infarct, the abnormality seems related to intraosseous penetration of calcified urate deposits.