Synonyms
Proptosis (for forward displacement of the globe)
Definition
Displacement of the globe from its normal anatomical location due to various orbital processes.
Etiology and Occurrence
Globe displacement may result from a wide variety of neoplastic, inflammatory, infectious, traumatic, and vascular conditions. Any mass lesion of the orbit may cause proptosis or displacement of the eye including primary tumors such as lacrimal epithelial tumors (pleomorphic adenoma, adenoid cystic carcinoma), mesenchymal tumors (fibrous histiocytoma, rhabdomyosarcoma), and neurogenic tumors (sphenoid wing meningioma, optic nerve glioma, neurofibroma, schwannoma). In addition, metastatic lesions, representing 2–3 % of all orbital tumors, are usually characterized by a rapid onset of orbital symptoms including globe displacement. The most common primary sites of metastatic carcinoma to the orbit are the breast, lung, prostate, gastrointestinal tract, and kidney.
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Further Reading
Dutton J (2004) Orbital diseases. In: Yanoff M, Duker JS (eds) Ophthalmology, 2nd edn. Mosby, Philadelphia, pp 729–743
Karcioglu Z (2005) Diagnosis of orbital tumors. In: Karcioglu Z (ed) Orbital tumors: diagnosis and treatment. Springer, New York, pp 49–60
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Setabutr, P., Kang, J. (2013). Globe, Displacement of, in Orbital Disorders. In: Schmidt-Erfurth, U., Kohnen, T. (eds) Encyclopedia of Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35951-4_248-4
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DOI: https://doi.org/10.1007/978-3-642-35951-4_248-4
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Publisher Name: Springer, Berlin, Heidelberg
Online ISBN: 978-3-642-35951-4
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