title: Ectopic lacrimal gland cyst of the orbit.
abstract: Lacrimal duct cysts are not common. It is extremely rare when a lacrimal duct cyst and an ectopic lacrimal gland develop in the orbital cavity. A unique case of an ectopic lacrimal gland cyst of the orbit is presented. A 33-year-old man had a palpable mass above the inferior medial orbital rim for nearly two years. An ocular examination was normal except for a movable, firm mass found in the anterior nasal inferior orbit of the right eye. An echogram revealed a homogeneous, hypoechoic cystic mass. Computed tomography of the orbit showed a well-encapsulated lesion in the lower orbit of the right eye near the inferior rectus muscle, without bony erosion. A tense, thin-walled, clear fluid-filled cyst measuring 15 x 12 x 13 mm in size was completely enucleated without rupture by anterior orbitotomy. Pathologic examination disclosed a small nest of normal gland tissue surrounded by a cystic lesion lined with two layers of lacrimal duct epithelium cells. No recurrent signs were noticed during a 12-month period of follow-up.
authors.affiliation: Department of Ophthalmology, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taiwan, ROC.
authors.forename: S C
authors.initials: SC
authors.lastname: Kao
authors.forename: L K
authors.initials: LK
authors.lastname: Yeh
authors.forename: C C
authors.initials: CC
authors.lastname: Tsai
authors.forename: W M
authors.initials: WM
authors.lastname: Hsu
mesh_terms: D000328:Adult; D002828:Choristoma / Q000209:etiology / Q000473:pathology*; D003560:Cysts / Q000209:etiology / Q000473:pathology*; D006801:Humans; D007765:Lacrimal Apparatus; D008297:Male; D009916:Orbital Diseases / Q000209:etiology / Q000473:pathology*