Advanced imaging of a histologically confirmed bone infarction of the distal tibia in a Warmblood mare. (13th September 2020)

• Record Type: Journal Article
• Authors: Hann, M. J.; Rocchigiani, G.; Verin, R.; Milner, P.; Robinson, C.; Castro Martins, M.
• Is Part Of: Equine veterinary education. Volume 33:Number 11(2021)
• Page Start: e423
• Page End: e428
• Publication Date: 2020-09-13
• Subjects: horse -- osteonecrosis -- bone pathology -- computed tomography -- histopathology; Horses -- Diseases -- Periodicals; Horses -- Diseases -- Treatment -- Periodicals; 636.108905
• DOI: 10.1111/eve.13335
• Languages: English
• ISSNs: 0957-7734

Abstract

Summary: 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.