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Angiostrongylosis was diagnosed in a 2-year-old whippet which was presented with spontaneous pneumothorax based on detection of Angiostrongylus vasorum first-stage larvae on lung histology and in faeces. Thoracic radiographs and computed tomography imaging revealed bilateral pneumothorax with a gas-filled bulla in the right caudal lung lobe. On thoracotomy, continuous air leakage was observed from the bulla. Histologic examination of lobectomised tissue confirmed the diagnosis of chronic granulomatous pneumonia due to A. vasorum infection. The dog was treated with fenbendazole until negative for larvae on faecal examination and recovered completely.

The most commonly reported clinical signs of angiostrongylosis are related to the respiratory tract, including cough and dyspnoea leading to exercise intolerance, and rarely haemothorax (Chapman et al. 2004, Sasanelli et al. 2008, Koch and Willesen 2009). Pneumothorax has been mentioned in association with angiostrongylosis (Martin et al. 1993, Gallagher et al. 2012), but has not been described in detail so far. Identification of the underlying cause is important for the prognosis and treatment of pneumothorax. Angiostrongylosis should be considered as a possible aetiological cause of spontaneous pneumothorax in dogs even in the absence of radiological changes supportive of an A. vasorum infection.

  • E. H. Spodsberg, J. E. Miles, F. J. McEvoy and J. L. Willesen

  • University Hospital for Companion Animals, Department of

  • Veterinary Clinical and Animal Sciences, Faculty of Health and

  • Medical Sciences, University of Copenhagen, Copenhagen,

  • Denmark

References

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  2. References
  • Chapman, P. S., Boag, A. K., Guitian, J., et al. (2004) Angiostrongylus vasorum infection in 23 dogs (1999–2002). Journal of Small Animal Practice 45, 435440
  • Gallagher, B., Brennan, S. F., Zarelli, M., et al. (2012) Geographical, clinical, clinicopathological and radiographic features of canine angiostrongylosis in Irish dogs: a retrospective study. Irish Veterinary Journal 65, 5
  • Koch, J. & Willesen, J. L. (2009) Canine pulmonary angiostrongylosis – an update. The Veterinary Journal 179, 348359
  • Martin, M. W. S., Ashton, G., Simpson, V. R., et al. (1993) Angiostrongylosis in Cornwall: clinical presentation of eight cases. Journal of Small Animal Practice 34, 2025
  • Sasanelli, M., Paradies, P., Otranto, D., et al. (2008) Haemothorax associated with Angiostrongylus vasorum infection in a dog. Journal of Small Animal Practice 49, 417420