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Research Letters |

Orbital Silicone Oil Granuloma Discovered During Enucleation

Steven M. Couch, MD; George J. Harocopos, MD; John B. Holds, MD
Arch Ophthalmol. 2012;130(8):1083-1085. doi:10.1001/archophthalmol.2012.287.
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Silicone oil tamponade is commonly used in surgical repair of recalcitrant retinal detachments. Complications of intraocular silicone oil include corneal decompensation, cataract formation, and glaucoma.1 Silicone oil has been reported to migrate through the optic nerve into the brain.2 Free silicone oil within tissues can cause a chronic granulomatous inflammatory reaction, which, depending on the location, can result in impairment of involved structures.34 Silicone oil has been reported to cause granulomatous anterior episcleral nodules following transscleral migration through vitrectomy sites.4 We have found no cases of posterior orbital silicone oil granulomas incidentally discovered during enucleation.

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Figure. Gross and histologic photographs. A, Gross photograph of the enucleated globe with a large white mass extending from the posterior sclera. B, Low-magnification histologic photograph of the globe with iatrogenic scleral discontinuity (arrow) and a large silicone oil granuloma extending off the posterior sclera (asterisk) (hematoxylin-eosin, original magnification ×1). C, High-magnification histologic photograph of the posterior epibulbar mass, showing silicone oil with a granulomatous reaction characterized by giant cells (arrow) and associated lymphocytes (hematoxylin-eosin, original magnification ×400).

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