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Primary extraskeletal chondrosarcoma in the axillary region of a dog with review of the literature
  1. Catrina Pennington1,
  2. Josep Monne Rodriguez2,
  3. Marlene Finck3 and
  4. Ben Walton1
  1. 1 Chestergates Veterinary Specialists, Chester, UK
  2. 2 Department of Veterinary Pathology and Public Health, Institute of Veterinary Science, University of Liverpool, Neston, UK
  3. 3 CHV Massilia, Marseille, France
  1. Correspondence to Dr Catrina Pennington; Trinpennington{at}


An eight-year-old, intact male English springer spaniel was presented with a five-month history of right forelimb lameness. MRI revealed a right axillary mass with associated nerve root thickening. Radiographs showed no evidence of bone involvement or pulmonary metastasis. A biopsy was taken of the mass, and histopathological examination was consistent with a high-grade chondrosarcoma. Conservative treatment was elected, and the patient euthanased four months later, after which postmortem examination was performed.

  • chondrosarcoma
  • canine
  • axillary
  • magnetic resonance imaging (mri)
  • extraskeletal
  • histopathology
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  • Contributors All authors certify that they have participated sufficiently in the work to take public responsibility for the content, including participation in the concept, design, analysis, writing or revision of the manuscript.

  • Funding This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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