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Incomplete pentalogy of Cantrell in a Border terrier puppy
  1. Phillipa Williams1,
  2. Malcolm Booth1 and
  3. Matteo Rossanese2
  1. 1Small Animal Teaching Hospital, University of Liverpool, Neston, Cheshire, UK
  2. 2Clinical Services Division, Royal Veterinary College, Hatfield, UK
  1. Correspondence to Phillipa Williams; pippa{at}


A 4-month-old, 6.4-kg, male entire, Border terrier was referred for investigation of exercise intolerance and a suspected congenital midline defect. Physical examination revealed a sternal and a supraumbilical abdominal defect. Thoracic radiography and CT confirmed a congenital sternal cleft, a large supraumbilical diastasis rectus and a pleuroperitoneal diaphragmatic hernia. No congenital cardiac defect was detected during echocardiographic examination. These findings were consistent with an incomplete Cantrell’s pentalogy. Surgical reconstruction involved diaphragmatic reconstruction, abdominal muscle herniorrhaphy and novel closure of a sternal cleft with crimped monofilament nylon leader line. The dog had grown since surgery to a mature adult size and did not exhibit exercise intolerance 18 months postoperatively. Cantrell’s pentalogy is a collection of congenital midline defects that are rare in the dog and cat but can be successfully treated surgically, especially if diagnosed at a young age and if not involving intracardiac defects.

  • Cantrell's pentalogy
  • congenital defect
  • sternal cleft
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  • Contributors PW and MR revised the draft paper.

  • 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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