Eye
Conjunctiva
Steatocystoma simplex


Topic Completed: 1 July 2013

Revised: 26 March 2019

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

PubMed Search: Steatocystoma simplex eye

Deepali Jain, M.D.
Page views in 2018: 1,447
Page views in 2019 to date: 1,024
Cite this page: Jain D. Conjunctiva: steatocystoma simplex. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/eyesteatocytomasimplex.html. Accessed August 23rd, 2019.
Definition / general
  • Rare benign adnexal tumor, usually in caruncle
  • Steatocystoma simplex if solitary; steatocystoma multiplex if multiple cysts
  • Due to nevoid malformation of pilosebaceous duct junction
Etiology
  • Autosomal dominant trait in multiplex
Clinical features
  • Typically affects individuals younger than 30 years; contains yellow sebum associated with hairs
Case reports
Treatment
  • Simple excision with removal of cyst wall intact
Clinical images

Images hosted on other servers:
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Pale yellow lesion

Gross description
  • Flesh colored or yellowish, well circumscribed, soft, mobile, and non-tender
  • On incision contains oily sebum
Microscopic (histologic) description
  • Cystic space lined by nonkeratinizing squamous epithelium with an eosinophilic cuticle and sebaceous lobules within the cyst wall, but no granular layer
Microscopic (histologic) images

Images hosted on other servers:
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Cyst lined by squamous epithelium
with sebaceous glands in cyst wall

Differential diagnosis
  • Keratinous cyst: older adults, no sebaceous glands in or adjoining wall
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