bovis - Articles
Ocular dermoid cysts
Synonym(s): eye mass growth skin mass lump tissue
Introduction
- Uncommon, congenital masses of normal tissue growing in an abnormal site, such as skin tissue growing in/on the eye.
- May involve cornea, conjunctiva, third eyelid or eyelids. May be bilateral.
- Cause: often unknown.
- Signs: mass on/near eye, blepharospasm, lacrimation, visual impairment. Variable pigmentation and hairs may be present.
- Diagnosis: clinical signs +/-biopsy and histopathology.
- Treatment: surgical removal.
- Prognosis: variable.
Presenting signs
- Abnormal mass in external eye - cornea, conjunctiva, eyelids.
- Ocular pain and discharge.
Age predisposition
- Congenital, thus usually noticed in young animals.
Breed/Species predisposition
Pathogenesis
Etiology
- Etiology is often unknown, but presumed to be due to defects in embryogenesis where elements of disordered dermal/epidermal tissue become entrapped within the cornea, conjunctiva, etc.
- Ocular dermoids have been found to be a genetically transmitted defect in Hereford cattle. Researchers found characteristics of autosomal recessive and polygenic inheritance.
Diagnosis
Subscribe To View
This article is available to subscribers.
Try a free trial today or contact us for more information.
Treatment
Subscribe To View
This article is available to subscribers.
Try a free trial today or contact us for more information.
Prevention
Subscribe To View
This article is available to subscribers.
Try a free trial today or contact us for more information.
Outcomes
Subscribe To View
This article is available to subscribers.
Try a free trial today or contact us for more information.
Further Reading
Publications
Refereed Papers
- Recent references from PubMed and VetMedResource.
- Rashmi P T & Priya Singh P (2018) Surgical management of dermoid cyst in a crossbred calf. J Entomol Zool 6 (2), 2574-2576 EntomolJ.
- Barkyoumb S D & Leipold H W (1984) Nature and cause of bilateral ocular dermoids in Hereford cattle. Vet Pathol 21 (3), 316-324 PubMed.
Other sources of information
- Depenbrock S (2017) Ruminant Field Anesthesia and Analgesia. In: Penn Conference Proceedings. Davis, USA. Website: www.vet.upenn.edu (pdf download).