title: Primary conjunctival epithelial cyst of the orbit.
abstract: BACKGROUND
  A primary conjunctival epithelial cyst is an uncommon lesion that consists of nonkeratized, stratified squamous epithelium without dermal appendages.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  A 57-year-old woman presented with a soft mass in the anterior portion of the nasal orbit. Magnetic resonance imaging demonstrated a rounded, cystic lesion between the right eye and the nasal bone. Histopathological examination following complete surgical excision disclosed a conjunctival epithelial cyst lined by nonkeratinized cuboidal epithelium without goblet cells and adnexal structures.
  
  
  CONCLUSIONS
  A conjunctival epithelial cyst should be considered in the differential diagnosis of a mass in the anterior portion of nasal or superonasal orbit.
authors: Department of Ophthalmology, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu-shi 879-5593, Japan. imaizumi@med.oita-u.ac.jp
authors: Masamoto
authors: M
authors: Imaizumi
authors: Mayuko
authors: M
authors: Nagata
authors: Celso Soiti
authors: CS
authors: Matsumoto
authors: Kazuo
authors: K
authors: Nakatsuka
authors: Kenji
authors: K
authors: Kashima
mesh_terms: D003229:Conjunctival Diseases / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D013508:Ophthalmologic Surgical Procedures / Q000379:methods; D009916:Orbital Diseases / Q000175:diagnosis* / Q000601:surgery