Cyathostomosis

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Also known as: Cyathostominosis

Description

Signalment

Diagnosis

Clinical Signs

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Treatment

Prognosis

Prevention

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References

  • Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition) Elsevier Science
  • Mair, T., Love, S., Schumacher, J. and Watson, E. (1998) Equine Medicine, Surgery and Reproduction WB Saunders Company Ltd
  • Knottenbelt, D.C. A Handbook of Equine Medicine for Final Year Students University of Liverpool
  • Pearce, O. (1994) Treatment of Equine Tetanus In Practice November 1994 pp 322-325.
  • Merck & Co (2008) The Merck Veterinary Manual (Eighth Edition) Merial

Gross

  • Encysted larvae appear as pinhead grey to red mucosal nodules.
  • Mass emergence results in:
    • Mucosal erosions.
  • Ulcers.
  • Fibrinous exudates.
  • Haemorrhage.

Histopathology

  • Larvae in deep mucosa/sumucosa surrounded by fibrous capsule and mixed inflammatory cells.
  • Intense eosinophil, neutrophil and macrophage infiltration when larvae emerge
    • May also be oedema and, if severe, mucosal ulceration.