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MRI findings and surgical treatment of a carpal synovial cyst in a dog
  1. Caitlin Tzounos1,
  2. Olivier Taeymans2,
  3. Rob Quinn3 and
  4. Georg Haimel4
  1. 1Small Animal Surgery, Dick White Referrals Ltd, Six Mile Bottom, UK
  2. 2Diagnostic Imaging, Dick White Referrals Ltd, Six Mile Bottom, UK
  3. 3Small Animal Surgery, Southern Counties Veterinary Specialists, Ringwood, Hampshire, UK
  4. 4Small Animal Surgery, Tierarztpraxis am Stadtpark, Wien, Austria
  1. Correspondence to Dr Caitlin Tzounos; caitlin.tzounos{at}


A male neutered pug aged 3 years and 3 months presented with a 4-month history of persistent left thoracic limb lameness, which was associated with a firm swelling on the palmerolateral aspect of the carpus. MRI confirmed a fluid-filled structure, which appeared to be associated with the joint space. The structure was surgically excised. Histopathology confirmed a true synovial cyst. Follow-up by telephone and email with the owner 18 months after surgery confirmed the patient was clinically well, with complete resolution of the lameness and no recurrence of swelling. This report discusses the MRI characteristics and successful treatment of a carpal synovial cyst causing lameness in the absence of osteoarthritis. There was long-term resolution of clinical signs with surgical excision of the cyst.

  • Synovial cyst
  • Lameness
  • Surgery
  • Magnetic resonance imaging (MRI)
  • Orthopaedics
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  • Contributors CT, RQ and GH consulted on the patient and performed treatment. OT performed and interpreted the imaging. All authors were involved with manuscript preparation.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

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

  • Data availability statement All data relevant to the study are included in the article.

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