Primary haemangiosarcoma in the proximal humerus of a Clydesdale gelding

Authors

  • H. J. Cottle,

    Corresponding author
    1. Weipers Centre for Equine Welfare, Division of Companion Animal Sciences, Bearsden Road, Glasgow G61 1QH, UK
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  • K. J. Hughes,

    1. Weipers Centre for Equine Welfare, Division of Companion Animal Sciences, Bearsden Road, Glasgow G61 1QH, UK
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  • A. W. Philbey,

    1. Weipers Centre for Equine Welfare, Division of Companion Animal Sciences, Bearsden Road, Glasgow G61 1QH, UK
    2. Division of Pathological Services, University of Glasgow Veterinary School, Garscube Estate, Bearsden Road, Glasgow G61 1QH, UK
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  • P. J. Pollock

    1. Weipers Centre for Equine Welfare, Division of Companion Animal Sciences, Bearsden Road, Glasgow G61 1QH, UK
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*Weipers Centre for Equine Welfare, Division of Companion Animal Sciences, Bearsden Road, Glasgow G61 1QH, UK

Summary

An 11-year-old Clydesdale gelding was presented for investigation of left forelimb lameness of 2 weeks' duration. The use of scintigraphic imaging helped to localise the source of lameness to the left proximal humerus. In this report, the clinical and diagnostic imaging features of a primary osseous haemangiosarcoma in a horse are described, along with the challenges of establishing a definitive diagnosis ante mortem. In addition, neoplasia of the appendicular skeleton should be considered a differential cause of lameness in the horse.

Ancillary