Optic Nerve and Orbital Tumors

Volpe, Nicholas J.; Gausas, Roberta E.

doi:10.1016/s1042-3680(18)30167-0

Cited by 27 publications

(33 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Most peripheral nerve tumors originate from the first branch of the trigeminal nerve. 15,17) Patients with this type of tumor present with slowly progressive proptosis or displacement of the globe, and seldom develop diplopia, which is a defect of visual function. Our patient presented with numbness of the right forehead, proptosis, orbital pain, and blurred vision in the early stage, and the visual disorder worsened rapidly, resulting in blindness due to compression by the huge tumor.…”

Section: Discussionmentioning

confidence: 99%

“…Orbital schwannoma accounts for 1-4% of all orbital tumors, 2,14,17) although orbital schwannoma tends to be reported without definite identification of the origin. 17) The majority of orbital schwannomas are benign, although some show malignant changes.…”

Section: Introductionmentioning

confidence: 99%

“…17) The majority of orbital schwannomas are benign, although some show malignant changes. 6,7,10) Most originate from branches of the oculomotor, trochlear, trigeminal, and abducens nerves, and from sympathetic and parasympathetic fibers.…”

Section: Introductionmentioning

confidence: 99%

“…6,7,10) Most originate from branches of the oculomotor, trochlear, trigeminal, and abducens nerves, and from sympathetic and parasympathetic fibers. 15,17) However, orbital schwannoma originating from the first branch of the trigeminal (ophthalmic) nerve with extension to the lateral wall of the cavernous sinus from the orbit through the superior orbital fissure (SOF) is uncommon. Tumors of the cavernous sinus except for schwannomas tend to be treated by surgical resection rather than stereotactic radiosurgery due to concerns regarding removal, hemostasis, and the appearance of new postoperative deficits.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Orbital Schwannoma Extending to the Lateral Wall of the Cavernous Sinus Through the Superior Orbital Fissure -Case Report-

Hironaka

Nakase

Motoyama

et al. 2010

Neurol. Med. Chir.(Tokyo)

View full text Add to dashboard Cite

A 58-year-old man presented with a rare orbitocavernous sinus schwannoma that originated from the orbital opthalmic nerve, and manifested as slowly progressive hypesthesia of the right side of the forehead, proptosis, and ocular pain with rapidly worsening visual acuity. Magnetic resonance imaging revealed a huge orbital tumor extending to the lateral wall of the cavernous sinus through the superior orbital fissure. Microsurgical total resection of the tumor was achieved using an epidural orbitofrontal approach with orbito-fronto-zygomatic craniotomy. The histological diagnosis was schwannoma with Antoni type A formation. The postoperative course was uneventful except for the hypesthesia on the right side of the forehead and transient oculomotor paralysis. Surgery was effective to relieve the symptoms and improve the activities of daily living.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Orbital Schwannoma Extending to the Lateral Wall of the Cavernous Sinus Through the Superior Orbital Fissure -Case Report-

Hironaka

Nakase

Motoyama

et al. 2010

Neurol. Med. Chir.(Tokyo)

View full text Add to dashboard Cite

show abstract

“…[6] The schwannoma of orbit accounts for 1-4% of all orbital neoplasm. [7] The tumor has no significant sex predilection and age of presentation varies from 6 months to 72 years. Because of the subtle nature of symptoms and neglect of early symptoms, majority of the tumors achieve a large size before their diagnosis is made.…”

Section: Case Reportmentioning

confidence: 99%

A Rare Case of Schwannoma of Trigeminal Nerve With Intraorbital Extension

Patil¹,

Ananth²,

Sultana³

2015

jemds

View full text Add to dashboard Cite

Schwannomas, also known as neurilemmomas, are benign peripheral nerve sheath tumors. Trigeminal schwannomas are rare intracranial tumors. Here, we report a 35-year-old female presenting with an axial proptosis of right eyeball with right-sided III, IV and VI cranial nerve palsy. Her best corrected visual acuity in the right eye was perception of light absent and in the left eye was 20/20. MRI scan revealed a large right-sided heterogeneous, extra-axial middle cranial fossa mass that extended to the intraconal space of right orbit. A diagnosis of intracranial trigeminal nerve schwannoma with right orbital extension was made. Successful surgical excision of the mass with preservation of the surrounding tissues and orbital exenteration was done. Post-operative period was uneventful.INTRODUCTION: We present a rare case of schwnnoma of the right trigeminal nerve (V1 segment) of 40 year female patient presented with pain and watering in the right eye redness and forward proptosis. CT brain reveals intraconal mixed density lesion with solid cystic component causing proptosis and widening of optic canal extending to middle cranial fossa possibly optic nerve glioma. MRI of brain reveals intensely heterogeneously enhancing orbital neoplasm with intra and extra conal component with areas of haemorrhage and necrosis. The lesion seen to encase right cavernous sinus and right internal carotid artery and displacing the cavernous sinus medially and pituitary laterally possibly optic nerve sheath tumour -schwannoma or optic nerve glioma. However HPR reveals schwannoma of the V1segment of right trigeminal nerve.Schwannomas are usually benign (WHO GRADE I) tumors arising from the schwann cells in the axon myelin sheaths. [1] Trigeminal schwannomas are rare intracranial tumors, accounting for 0.8% to 8% of intracranial schwannomas. Trigeminal schwannomas are much less common than acoustic neuroma. [2] This benign tumor grow larger and spread into extracranial compartments through the foramina in the skull. [3] The variable location and presentation of this tumor makes the diagnosis difficult. The diagnosis is usually confirmed by histopathological examination. Here we present a rare case of benign intracranial trigeminal schwannoma arising from right parasellar region extending to intraconal space of the right orbit which was managed successfully by surgery.

show abstract