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Clinical outcome in 94 cases of dermal haemangiosarcoma in dogs treated with surgical excision: 1993–2007

Authors

  • A. Szivek,

    Corresponding author
    1. William R. Prichard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • R. E. Burns,

    1. Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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    • Present address: Wildlife Disease Laboratories, San Diego Zoo Institute for Conservation Research, PO Box 120551, San Diego, CA 92112-0551, USA

  • B. Gericota,

    1. Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • V. K. Affolter,

    1. Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • M. S. Kent,

    1. Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • C. O. Rodriguez Jr,

    1. William R. Prichard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • K. A. Skorupski

    1. Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
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  • This study was presented in part at the 28th Annual Veterinary Cancer Society conference in Seattle, Washington, 18–21 October 2008.

Anna Szivek William R. Prichard Veterinary Medical Teaching Hospital University of California-Davis Davis, CA 95616, USA
e-mail: aszivek@earthlink.net

Abstract

Canine dermal haemangiosarcoma (HSA) is believed to have a better prognosis compared to HSA in other organs, but outcome has only been reported in a small number of dogs. The purpose of this study was to assess outcome and prognostic factors in a larger cohort of dogs with dermal HSA. Clinical data was collected retrospectively for 94 dogs and histopathology was reviewed in 53 dogs. Median overall survival time was 987 days. Dogs of predisposed breed with ventral location and histologic solar changes had longer survivals. Loco-regional recurrence occurred in 72/94 (77%) dogs. Predisposed breeds with ventral location and multiple masses were more likely to develop recurrence. Non-predisposed breeds with invasive tumours were more likely to develop metastasis. Results suggest that dogs with solar-induced dermal HSA may have high recurrence rates, but prolonged survivals. Dogs with non-solar tumours may be at increased risk for metastasis and shorter survival.

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