title: Caruncular dacryops.
abstract: OBJECTIVE
  To report a case of caruncular dacryops in a 58-year-old man that was excised in its entirety and to offer an immunohistopathologic analysis.
  
  
  METHODS
  Sections stained with hematoxylin and eosin, periodic acid-Schiff, and Grocott methenamine silver (the latter 2 for identification of mucus) were evaluated, and immunohistochemical investigations were performed using cytokeratin (CK) 7, CK14, CK17, and smooth muscle actin.
  
  
  RESULTS
  Histopathologic examination revealed a cystic dilation of the lacrimal gland ducts containing secretory globules. The ducts were composed of double-layered cuboidal epithelium with rare scattered goblet cells and interspersed prominent lobules of lacrimal gland tissue, diagnostic of dacryops. Immunohistochemistry of cystic ducts demonstrated a CK profile identical to that of the conjunctiva including the absence of a myoepithelium.
  
  
  CONCLUSIONS
  This is the first case of an intact caruncular lacrimal ductal cyst (dacryops). A previous report documented a spontaneously collapsed cyst with extrusion of secretory globoid bodies into extracellular space that elicited a foreign body giant cell response.
authors.affiliation: *Department of Ophthalmology, Harvard Medical School, Boston, MA; †David G. Cogan Laboratory of Ophthalmic Pathology, Massachusetts Eye and Ear Infirmary, Boston, MA; and ‡Ophthalmic Plastic Surgery, Massachusetts Eye and Ear Infirmary, Boston, MA.
authors.forename: Frederick A
authors.initials: FA
authors.lastname: Jakobiec
authors.forename: Miin
authors.initials: M
authors.lastname: Roh
authors.forename: Anna M
authors.initials: AM
authors.lastname: Stagner
authors.forename: Michael K
authors.initials: MK
authors.lastname: Yoon
mesh_terms: D000199:Actins / Q000378:metabolism; D003228:Conjunctiva; D003560:Cysts / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D020397:Goblet Cells / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000378:metabolism; D007766:Lacrimal Apparatus Diseases / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D013194:Staining and Labeling / Q000379:methods
chemical_list: C541116:ACTA2 protein, human; D000199:Actins; D007633:Keratins