Eye
Orbit and optic nerve
Dermoid cyst of orbit

Author: Nat Pernick, M.D. (see Authors page)

Revised: 11 May 2018, last major update February 2014

Copyright: (c) 2004-2018, PathologyOutlines.com, Inc.

PubMed Search: Dermoid cyst [title] orbit

Cite this page: Pernick, N. Orbit and optic nerve: dermoid cyst of orbit. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyeorbitdermoid.html. Accessed September 25th, 2018.
Definition / general
  • Congenital but may not be clinically evident until age 20 years
  • Most common in superior temporal orbit, also eyelid
Radiology images

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Nasally located cystic lesion

Gross description
  • Soft, nontender, round / oval cyst with thickened wall, 1 cm or less
  • Contain yellow, cheesy material
Microscopic (histologic) description
  • Encapsulated, lined by well differentiated epidermis and dermis, lumen filled with keratinous debris, hair, sebum
  • May have foreign body inflammatory reaction if cyst ruptures
Microscopic (histologic) images

Images hosted on PathOut server:
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Inflamed cyst lined by conjunctival type epithelium

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Inflamed cyst lined by skin