Canis ISSN: 2398-2942

Pyothorax

Synonym(s): Thoracic empyema

Contributor(s): Andrew Gardiner

Introduction

  • Accumulation of pus within the thoracic cavity.
  • Cause: underlying inflammatory disorder: infection may enter the thoracic cavity by various routes, eg direct penetration or hematogenous spread.
  • Signs: respiratory distress, pyrexia and anorexia.
  • Subacute condition, characteristically taking several days to several weeks to develop.
  • Diagnosis: history, clinical signs, radiography, cytopathology, hematology, auscultation.
  • Treatment: may involve both medical and surgical strategies.
  • Prognosis: fair to guarded.

Pathogenesis

Etiology

Pathophysiology

  • The infective agent enters the thoracic cavity by direct penetration, hematogenous spread or extension from adjacent tissues.
  • A suppurative inflammatory process develops.
  • Pus accumulates within the thorax.

Timecourse

  • Days to several weeks.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Piek C J & Robben J H (2000) Pyothorax in nine dogs. Vet Quarterly 22 (2), 107-111 PubMed.


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