title: Choristomatous Respiratory Cyst Restricted to the Upper Eyelid.
abstract: A 79-year-old man underwent excision of an upper eyelid mass that had been enlarging for 3 months. Histopathologic evaluation demonstrated a cyst lined by pseudostratified columnar epithelium with myriad goblet cells and cilia, and immunostaining revealed cytokeratins indicative of a respiratory origin. This rare condition, the first described exclusively in an eyelid, arises either from a congenital embryologic respiratory epithelial ectopia or the displacement of mature sinus mucosa following trauma or chronic sinus disease. The current case lacked any signs or symptoms of sinus disease or a history of trauma.
authors: *Department of Ophthalmology, †David G. Cogan Laboratory of Ophthalmic Pathology, and ‡Ophthalmic Plastic Surgery, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, U.S.A.
authors: Frederick A
authors: FA
authors: Jakobiec
authors: Miin
authors: M
authors: Roh
authors: Anna M
authors: AM
authors: Stagner
authors: Michael K
authors: MK
authors: Yoon
mesh_terms: D000368:Aged; D015415:Biomarkers / Q000378:metabolism; D002828:Choristoma / Q000175:diagnosis* / Q000378:metabolism / Q000601:surgery; D004814:Epidermal Cyst; D005141:Eyelid Diseases / Q000175:diagnosis* / Q000378:metabolism / Q000601:surgery; D006801:Humans; D053537:Keratin-17 / Q000378:metabolism; D053538:Keratin-18 / Q000378:metabolism; D053552:Keratin-7 / Q000378:metabolism; D008297:Male; D020545:Respiratory Mucosa
chemical_list: D015415:Biomarkers; D053537:Keratin-17; D053538:Keratin-18; D053552:Keratin-7