Felis ISSN 2398-2950

Cornea: dermoid

Synonym(s): Epibulbar dermoid

Contributor(s): Dennis E Brooks, Peter Renwick, David Williams

Introduction

  • Congenital condition.
  • Cause: normal skin tissue is at an abnormal site (usually at the lateral limbus affecting both conjunctiva and cornea) .
  • Signs: corneal opacity, hair growing from the conjunctiva/cornea.
  • Diagnosis: signs.
  • Treatment: surgical removal.
  • Prognosis: good.

Pathogenesis

Etiology

  • Congenital - impaired differentiation of eyelid tissue.

Pathophysiology

  • Embryological defect   →   impaired differentiation of eyelid tissue   →   skin on conjunctiva/cornea.
  • Dermoid may consist of connective tissue, hair follicles, sebaceous glands, sweat glands, fat.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Gelatt K N (1973) Pediatric ophthalmology in small animal practice. Vet Clin North Am (3), 321-333 PubMed.

Other sources of information

  • Petersen-Jones S & Crispin S (2002) BSAVA Manual of Small Animal Ophthalmology. 2nd edn. British Small Animal Veterinary Association. ISBN 0 905214 54 4


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