Right ventricular rupture after lateral thoracotomy for removal of rib-associated telangiectatic osteosarcoma in a dog

Authors

  • Reto Barmettler Dr med vet,

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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  • David E. Spreng Dr med vet, DECVS, DACVECC,

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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  • Daniela Gorgas Dr med vet, DECVDI,

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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  • Gernot Scharf Dr med vet, DECVDI,

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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  • Horst Posthaus Dr med vet, PhD, DECVP,

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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  • Nadja E. Sigrist Dr med vet, FVH, DACVECC

    1. Department of Clinical Veterinary Medicine (Barmettler, Spreng, Gorgas, Sigrist), the Institute of Animal Pathology (Posthaus), Vetsuisse Faculty, University of Bern, Bern, Switzerland; and Vetimage Diagnostik GmbH, Oberentfelden, Switzerland (Scharf).
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Address correspondence and reprint requests to
Reto Barmettler, Dr med vet, Department of Clinical Veterinary Medicine, Vetsuisse Faculty of Bern, Länggassstrasse 128, CH-3012 Bern, Switzerland. Email: reto.barmettler@kkh.unibe.ch

Abstract

Objective – To describe a case of a focal right ventricular rupture following removal of a rib-associated telangiectatic osteosarcoma (TOS) in a dog.

Case Summary – A 2-year-old spayed female mixed-breed dog, weighing 20 kg, was presented in compensated hypovolemic shock due to active bleeding into the thoracic cavity. The dog was stabilized with appropriate fluid administration. Subsequent computed tomographic examination revealed a large mineralized mass originating from the body of a rib and displacing the heart. Two days after surgical removal of this mass, focal right ventricular rupture occurred and the dog died. The mass was later identified as a TOS.

New or Unique Information Provided – Although hemothorax secondary to TOS has been described previously, this report describes for the first time, spontaneous focal right ventricular rupture as a rare complication of thoracotomy and rib resection for the removal of a rib-associated, intrathoracic TOS.

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