Chronic eosinophilic granulomatous tenosynovitis in a Quarter Horse mare |
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| Authors: | Zoë J Williams John McIlmurray Frank Nickels |
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| Institution: | 1. College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA;2. Metamora, Michigan, USA |
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| Abstract: | A 5-year-old Quarter Horse mare was presented to the Michigan State University Equine Surgery Service for evaluation of a right hind metatarsophalangeal joint injury. On presentation, the horse was a grade 4/5 lame. Radiographs and ultrasonography showed peritendinous ossification/mineralisation of soft tissue structures and digital flexor tenosynovitis with profound intracapsular mineralisation. A digital flexor tendon sheath tenoscopy was performed with a plantar annular ligament desmotomy and a manica flexoria ligament tenotomy. During surgery, a significant amount of tan granular material was found within the digital tendon sheath. Approximately 80% of this material was removed, and a sample was sent for histopathology. The horse was diagnosed with eosinophilic granulomatous tenosynovitis. Long-term follow-up revealed improvement with four treatments of intralesional triamcinolone given 2–4 weeks apart. The horse became serviceably sound (grade 1/5) and was beginning light work under the saddle approximately 5 months post-tenoscopy. |
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| Keywords: | horse desmotomy eosinophilic granulomatous tenosynovitis |
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