title: Adenoma of the nonpigmented ciliary epithelium.
abstract: BACKGROUND
  There is a spectrum of benign and malignant ciliary body tumors that can be classified by histopathologic examination.
  
  
  METHODS
  A 55-year-old woman with a history of ovarian carcinoma underwent excision of a ciliary body tumor in her right eye. The tumor was submitted for light microscopic, immuno-histochemical, and ultrastructural examination.
  
  
  RESULTS
  The tumor was composed of sheets and cords of cells with bland cytologic features. Immunohistochemical stains were positive for S-100 protein and vimentin in tumor cells. Ultrastructural examination showed intercellular junctions and thick basement membrane within the tumor.
  
  
  CONCLUSIONS
  The tumor was classified as an adenoma of the ciliary body nonpigmented epithelium, a benign tumor with variable histopathologic features.
authors.affiliation: Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia.
authors.forename: H E
authors.initials: HE
authors.lastname: Grossniklaus
authors.forename: J I
authors.initials: JI
authors.lastname: Lim
mesh_terms: D000230:Adenocarcinoma / Q000737:chemistry / Q000000981:diagnostic imaging / Q000556:secondary*; D002924:Ciliary Body / Q000737:chemistry / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000473:pathology* / Q000601:surgery; D010857:Pigment Epithelium of Eye / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology*; D009418:S100 Proteins / Q000032:analysis; D014463:Ultrasonography; D014604:Uveal Neoplasms / Q000737:chemistry / Q000000981:diagnostic imaging / Q000556:secondary*; D014746:Vimentin / Q000032:analysis
chemical_list: D009418:S100 Proteins; D014746:Vimentin