title: Calcium crystal-associated arthropathy (pseudogout) in a dog.
abstract: 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 joints revealed 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.
authors.affiliation: Department of Small Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602.
authors.forename: J J
authors.initials: JJ
authors.lastname: de Haan
authors.forename: C B
authors.initials: CB
authors.lastname: Andreasen
mesh_terms: D000818:Animals; D002131:Calcium Pyrophosphate / Q000032:analysis; D002350:Carpus, Animal / Q000000981:diagnostic imaging*; D002805:Chondrocalcinosis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000662:veterinary*; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004285:Dogs; D005260:Female; D005334:Fever / Q000662:veterinary; D007794:Lameness, Animal / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D013582:Synovial Fluid / Q000737:chemistry
chemical_list: D002131:Calcium Pyrophosphate