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Epibulbar dermoid cyst - External and Internal Eye
Other Resources UpToDate PubMed

Epibulbar dermoid cyst - External and Internal Eye

Contributors: Brandon D. Ayres MD, Christopher Rapuano MD, Harvey A. Brown MD, Sunir J. Garg MD, Lauren Patty Daskivich MD, MSHS
Other Resources UpToDate PubMed

Synopsis

Dermoids are an overgrowth of normal, non-cancerous tissue in choristomatous tissue (tissue in an abnormal location). Epibulbar dermoid cysts are either limbal, at the junction of the cornea and sclera, or more posterior, at the junction of the bulbar and lid conjunctiva. Limbal epibulbar dermoid cysts are most often found at the inferior temporal limbus, while the posterior epibulbar dermoid cysts are often hidden under the outer upper eyelid laterally. Worldwide incidence is 1–3 per 10,000. These lesions may not only be cosmetically disfiguring but affect vision depending on how they affect the cornea and, hence, refractive status. Therefore, amblyopia is a serious concern with the limbal form. Foreign body sensation and an enlarging mass may also be presenting symptoms.

Codes

ICD10CM:
D31.00 – Benign neoplasm of unspecified conjunctiva

SNOMEDCT:
830036006 – Dermoid cyst of eye proper

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Foreign body granuloma
  • Sclerocornea
  • Staphyloma
  • Corneal scar from trauma or infection
  • Hemangioma
  • Ocular pterygium

Best Tests

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Management Pearls

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Therapy

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References

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Last Updated:01/19/2015
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Epibulbar dermoid cyst - External and Internal Eye
A medical illustration showing key findings of Epibulbar dermoid cyst : Sclera/bulbar conjunctiva cyst, Unilateral distribution, Visual impairment
Clinical image of Epibulbar dermoid cyst - imageId=3103756. Click to open in gallery.  caption: 'A yellowish-white, firm, rounded, fleshy papule at the limbus.'
A yellowish-white, firm, rounded, fleshy papule at the limbus.
Copyright © 2024 VisualDx®. All rights reserved.