Perivascular wall tumour presenting as pastern mass in a Standardbred gelding |
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| Authors: | M Stutsel M Gimeno A Young JW Bell N Horadagoda |
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| Affiliation: | 1. Agnes Banks Equine Clinic, Agnes Banks, New South Wales, Australia;2. Sydney University, Camden Equine Centre, Sydney, New South Wales, Australia;3. Alex Young Specialist Veterinary Imaging, Anstead, Queensland, Australia |
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| Abstract: | A 2-year-old Standardbred gelding was referred for a mass on the palmaromedial right front pastern which was accompanied by progressively worsening lameness. The mass was firm to palpation and covered by normal skin. Ultrasonographically, a smooth encapsulated mass was present, medial to the flexor tendons and palmar to the neurovascular bundle. Because of a poor prognosis for future athletic performance without surgical or chemotherapeutic intervention and economic constraints preventing further diagnostics and treatment, the horse was euthanised. Post-mortem magnetic resonance imaging, histopathology and immunohistochemistry revealed the mass to be a perivascular wall tumour, the first record of such a neoplasia in the horse. |
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| Keywords: | horse immunohistochemistry neoplasia pastern mass perivascular wall tumour |
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