title: Third eyelid dermoid in a horse.
abstract: An 8-year-old Gypsy Vanner gelding presented to the University of Florida Ophthalmology service for the evaluation of chronic, recurrent corneal ulcers behind the third eyelid of the right eye. On ophthalmic examination, a cluster of aberrant hairs was identified growing along the margin of the third eyelid. This portion of third eyelid was surgically excised, and histopathology identified the haired tissue as a dermoid. Chronic keratitis secondary to a third eyelid dermoid was diagnosed, and excision appeared curative at 6 months post-operative follow-up.
authors.affiliation: Department of Small and Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0126, USA.
authors.forename: Shari M
authors.initials: SM
authors.lastname: Greenberg
authors.forename: Caryn E
authors.initials: CE
authors.lastname: Plummer
authors.forename: Dennis E
authors.initials: DE
authors.lastname: Brooks
authors.forename: Serena L
authors.initials: SL
authors.lastname: Craft
authors.forename: Julia A
authors.initials: JA
authors.lastname: Conway
mesh_terms: D000818:Animals; D003884:Dermoid Cyst / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D005142:Eyelid Neoplasms / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D006734:Horse Diseases / Q000473:pathology* / Q000601:surgery; D006736:Horses; D008297:Male; D009541:Nictitating Membrane / Q000473:pathology* / Q000601:surgery