Calcium crystal-associated arthropathy (pseudogout) in a dog
de Haan, J.J.; Andreasen, C.B.
Journal of the American Veterinary Medical Association 200(7): 943-946
1992
ISSN/ISBN: 0003-1488 PMID: 1577646 Document Number: 394453
Calcium pyrophosphate dihydrate (Ca2P2O7 . 2H2O) crystal-associated arthropathy (pseudogout) was diagnosed in a dog. Clinical signs included non-weightbearing lameness, signs of pain on joint manipulation, and high rectal temperature. Arthrocentesis of carpal joint showed extra- and intracellular crystals containing calcium. The suspected cause was polyarthritis secondary to chronic Ehrlichia infection. Results of joint tap performed after resolution of the clinical signs were negative for calcium pyrophosphate dihydrate crystals.