Ectopic lacrimal gland cyst of the orbit.
Ectopic lacrimal gland tissue is most common in the eyelid, conjunctiva, and cornea, but may also be found in the uvea or orbit. A 7-year-old boy developed a mass in the anterior superiomedial orbit close to the trochlea. A superior medial orbitotomy, done when the boy was 9 years old, disclosed a tense, thin-walled, fluid-filled cyst containing a small nest of normal lacrimal gland with a large capsule of fibrous tissue containing areas of singly layered epithelial cells.
D000293:Adolescent; D000328:Adult; D002648:Child; D002828:Choristoma / Q000473:pathology* / Q000601:surgery; D003560:Cysts / Q000473:pathology / Q000601:surgery; D006801:Humans; D007765:Lacrimal Apparatus; D008297:Male; D009918:Orbital Neoplasms / Q000473:pathology* / Q000601:surgery