Orbital Tumors

Hintschich, Christoph; Rose, Geoff

doi:10.1007/3-540-31260-9_17

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…2,7 Some experienced surgeons believe that excision invariably leads to blindness. 9 As a general attitude toward the most common type of ONSMs, a fusiform sheath growing around the optic nerve, most surgeons do not even attempt to dissect the nerve but directly proceed to the resection of the nerve and the tumor together. Nerve preservation in these cases is clearly impossible.…”

Section: Microsurgical Treatmentmentioning

confidence: 99%

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Multisession CyberKnife radiosurgery for optic nerve sheath meningiomas

Romanelli

Wowra

Muacevic³

2007

FOC

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✓ Optic nerve sheath meningiomas (ONSMs) are benign lesions originating from the dural sheath of the optic nerve. Progressive growth can lead to gradual loss of vision and exophthalmos. Loss of vision following microsurgical resection is not uncommon, and although stereotactic fractionated radiotherapy can be a safe alternative to control tumor growth and preserve vision, it may also lead to complications. Frame-based stereotactic radiosurgery has only been rarely used because single-fraction high-dose treatments of intrinsic optic nerve lesions may induce unacceptably high toxicity. New frameless radiosurgery devices such as the robotic CyberKnife, an image-guided radiosurgery system, can provide the extremely tight conformality and submillimetric accuracy of frame-based systems combined with the possibility of delivering radiation in several sessions. In the present report the authors review the clinical presentation and management of ONSMs and describe their preliminary experience using multisession radiosurgery to treat these lesions.

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Section: Microsurgical Treatmentmentioning

confidence: 99%

“…Optic nerve sheath meningiomas confined in the orbit are resected via an orbitotomy. 5,9 Orbital exenteration is performed when the orbit is invaded by tumor beyond the optic nerve. 2 For meningiomas extending into the optic canal from within the skull, surgical unroofing is the preferred treatment.…”

Section: Microsurgical Treatmentmentioning

confidence: 99%