Eye
Orbit and optic nerve
Dermoid cyst of orbit


Topic Completed: 1 February 2014

Minor changes: 3 April 2019

Copyright: 2004-2019, PathologyOutlines.com, Inc.

PubMed Search: Dermoid cyst [title] orbit

Nat Pernick, M.D.
Page views in 2019: 451
Page views in 2020 to date: 112
Cite this page: Pernick N. Orbit and optic nerve: dermoid cyst of orbit. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyeorbitdermoid.html. Accessed June 1st, 2020.
Definition / general
  • Congenital but may not be clinically evident until age 20 years
  • Most common in superior temporal orbit, also eyelid
Radiology images

AFIP images
Missing Image

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

AFIP images
Missing Image

Inflamed cyst lined by conjunctival type epithelium

Missing Image

Inflamed cyst lined by skin

Back to top