title: Atypical manifestation of conjunctival epithelial inclusion cyst: a case report.
abstract: OBJECTIVE
  To report a case of primary conjunctival epithelial inclusion cyst with atypical manifestation.
  
  
  METHODS
  A 66-year-old woman presented with a yellowish, subconjunctival mass extending from the corneal limbus to the medial canthus in the left eye. Clinical, radiological and histological assays were performed.
  
  
  RESULTS
  The mass was well-delineated, and the overlying conjunctiva was normal. An enhanced axial orbit computed tomography scan showed a 7.7 × 3.6 mm, well-demarcated, convex-shaped enhanced mass. Neither a connection to the orbital area nor extrusion of intraconal fat was observed. Histological examination revealed that the lesion was a cystic mass that was lined by nonkeratinized, stratified squamous epithelium, and filled with mucous materials and cellular debris. The histologic diagnosis was consistent with conjunctival epithelial inclusion cyst.
  
  
  CONCLUSIONS
  A careful examination using clinical, radiologic and histological studies is essential for the differential diagnosis of subconjunctival mass.
authors.affiliation: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea.
authors.forename: Dong Hyun
authors.initials: DH
authors.lastname: Kim
authors.affiliation: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea.
authors.forename: Sang In
authors.initials: SI
authors.lastname: Khwarg
authors.affiliation: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea.
authors.forename: Joo Youn
authors.initials: JY
authors.lastname: Oh
keywords: Conjunctiva; Cyst; Epithelial inclusion cyst; Subconjunctival mass