Ovary - nontumor
Nonneoplastic cysts / other
Epidermoid cyst

Author: Mohiedean Ghofrani, M.D. (see Authors page)

Revised: 19 September 2017, last major update August 2011

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PubMed Search: Ovarian epidermoid cyst

Cite this page: Ghofrani, M. Epidermoid cyst. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ovarynontumorEIC.html. Accessed November 23rd, 2017.
Definition / general
  • Ovarian cyst lined exclusively by mature squamous epithelium
Terminology
  • Also called epidermal inclusion cyst
  • Do not confuse with dermoid cyst, which is a mature cystic teratoma (see differential diagnosis)
Epidemiology
  • Very rare
Etiology
  • Either monodermal teratoma or originating from surface epithelium (given the presence of Walthard nests in the wall of some) or rete ovarii
Clinical features
Prognostic factors
Case reports
Gross description
  • Cyst with creamy contents
Microscopic (histologic) description
Microscopic (histologic) images

Images hosted on PathOut server:

Keratinized material

Differential diagnosis