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  • 1 Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.
  • | 2 Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.
  • | 3 Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.
  • | 4 Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.
History

An 11-year-old spayed female Rottweiler was evaluated for progressive lameness of the right forelimb of 8 weeks' duration; the limb was non–weight-bearing for 4 weeks' duration. The dog was housed outdoors only, its vaccination status was not adequate, and it did not receive heartworm preventative.

Abnormalities detected during physical examination included a non–weight-bearing lameness of the right forelimb and a firm swelling (approx 13 × 10 × 10 cm) extending from the distal third of the humerus to the proximal aspects of the radius and ulna. Flexion of the elbow joint elicited signs of pain. Results of a CBC