Advanced imaging of a histologically confirmed bone infarction of the distal tibia in a Warmblood mare |
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| Authors: | M J Hann G Rocchigiani R Verin P Milner C Robinson M Castro Martins |
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| Institution: | 1. Department of Equine Clinical Science, Institute of Veterinary Science, University of Liverpool, Leahurst, Neston, UK;2. Department of Veterinary Pathology, Infection and Public Health, Institute of Veterinary Science, University of Liverpool, Leahurst, Neston, UK;3. Nantwich Veterinary Group Equine Centre, Nantwich, Cheshire, UK |
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| Abstract: | An 8-year-old Warmblood-cross mare presented for investigation of acute onset left hindlimb lameness. Nuclear scintigraphy identified a marked, focal, increase in radiopharmaceutical uptake in the distal aspect of the left tibia. Radiography revealed a large, oval, multi-loculated radiolucent area within the medulla of the distal metaphysis of the left tibia. The mare was treated conservatively for 6 months but showed little improvement in the lameness so the owner elected for euthanasia. Post-mortem computed tomographic imaging revealed a large, oval, hypoattenuating area within the distal tibia, surrounded by a thick, irregular, sclerotic border. The lesion occupied the majority of the medullary cavity but the cortical bone was unaffected. Gross and histopathological examination confirmed a diagnosis of a bone infarction in the medullary cavity of the distal tibia. |
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| Keywords: | horse osteonecrosis bone pathology computed tomography histopathology |
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