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Article
November 7, 1980

Subcutaneous Crystal Deposition in Pseudogout

Author Affiliations

From the North Chicago Veterans Administration Medical Center and the University of Health Sciences/The Chicago Medical School, North Chicago.

JAMA. 1980;244(18):2079-2080. doi:10.1001/jama.1980.03310180045032
Abstract

Aspiration of inflamed periarticular tissues in seven patients suspected of having gout on clinical examination revealed positively birefringent calcium pyrophosphate crystals. The identification of calcium pyrophosphate crystals within articular structures and in the surrounding soft tissues and radiologic findings of chondrocalcinosis, in the absence of identifiable uric acid crystals, emphasize the importance of crystal identification in all cases of probable gout and stress the diagnostic role of soft-tissue aspiration in cases of soft-tissue inflammation, especially when arthrocentesis is unsuccessful.

(JAMA 244:2079-2080, 1980)

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