title: [Rhinoepithelial, cystic choristoma of the orbit].
abstract: Over a period of 9 months a 12-year-old girl spontaneously developed a palpable cystic tumor in the upper eye lid which led to an indentation and downward displacement of the globe. The cyst was not joined to the intact orbital wall and it proved possible to remove it from the orbit by blunt dissection. Histopathologic examination revealed an epithelium typical of the upper respiratory tract. The process was clearly distinguishable from a mucocele of the paranasal sinuses.
mesh_terms: D002648:Child; D002828:Choristoma / Q000473:pathology*; D003937:Diagnosis, Differential; D004848:Epithelium; D005260:Female; D006801:Humans; D009915:Orbit / Q000473:pathology; D009918:Orbital Neoplasms / Q000473:pathology*; D012137:Respiratory System
vernacular_title: Rhinoepitheliales, zystisches Choristom der Orbita.