Eye
Orbit & optic nerve
Dermoid cyst-orbit
Author: Nat Pernick, M.D.
Last author update: 1 February 2014
Last staff update: 29 December 2020
Copyright: 2004-2024, PathologyOutlines.com, Inc.
PubMed Search: Dermoid cyst [title] orbit
Table of Contents
Definition / general | Radiology images | Gross description | Microscopic (histologic) description | Microscopic (histologic) imagesCite this page: Pernick N. Dermoid cyst-orbit. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/eyeorbitdermoid.html. Accessed April 24th, 2024.
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
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
Inflamed cyst lined by conjunctival type epithelium
Inflamed cyst lined by skin
