Equis ISSN 2398-2977

Nasal cavity: neoplasia - overview

Contributor(s): Tim Brazil, Prof Derek Knottenbelt, Anna Hollis

Introduction

  • Occurs much less frequently than neoplastic disease affecting the paranasal sinuses.
  • One of the biggest risks with cancerous conditions that affect the nasal cavity is compromised airflow during respiration.
  • Most frequently seen in mature older horses but neonatal foals occasionally present with nasomaxillary fibrosarcoma or adenocarcinoma.
  • Ethmoid hematoma is relatively common but not neoplastic.
  • Squamous cell carcinoma occurs within turbinates or in hard palate with extension to nasal cavity. 
  • Adenocarcinoma (nasal cavity and paranasal sinuses) most often in paranasal sinuses.
  • Epithelial tumors are more likely in older horses (median 14 years) and fibro-osseous tumors are more likely in younger horses (median 4 years).

Nasal polyp

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Progressive ethmoid hematoma

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Sinus/nasal squamous cell carcinoma and adenocarcinoma

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Paranasal and nasal cysts

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Hemangiosarcoma

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Henson F M D & Dobson J M (2004) Use of radiation therapy in the treatment of equine neoplasia. Equine Vet Educ 16 (6), 315-318 WileyOnline.
  • Hepburn R J & Furr M O (2004) Sinonasal adenocarcinoma causing central nervous system disease in a horse.  J Vet Intern Med 18 (1), 125-131 PubMed.
  • Greet T R C (1992) Outcome of treatment of 23 horses with progressive ethmoidal haematoma. Equine Vet J 24 (6), 468-471 PubMed.
  • Hilbert B J, Little C B, Klein K et al (1988) Tumours of the paranasal sinuses in 16 horses. Aust Vet J  65, 86-88 PubMed.
  • Lane J G, Longstaffe J A & Gibbs C (1987) Equine paranasal sinus cysts; A report of 15 cases. Equine Vet J 19 (6), 537-540 PubMed.
  • Leyland A & Baker J R (1975) Lesions of the nasal and paranasal sinuses of the horse causing dyspnoea. British Vet J 131 (3), 339-346 PubMed.
  • Cook W & Littlewort M C G (1974) Progressive haematoma of the ethmoid region in the horse. Equine Vet J 6 (3), 101-108 PubMed.

Other sources of information

  • Pascoe J (1990) Ethmoid Haematoma (progressive ethmoid haematoma, haemorrhagic nasal polyps). In: Large Animal Internal Medicine. Ed: Smith B P. Mosby Year Book, USA. pp 557.


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