Entrapment neuropathy of the optic nerve due to hyperostosis associated with congenital anemia

2005 ◽  
Vol 103 (5) ◽  
pp. 917-919 ◽  
Author(s):  
Takeo Baba ◽  
Yoshihiro Minamida ◽  
Takeshi Mikami ◽  
Izumi Koyanagi ◽  
Kiyohiro Houkin
Keyword(s):  
Bone Marrow ◽  
Visual Acuity ◽  
Optic Nerve ◽  
Surgical Decompression ◽  
Optic Canal ◽  
Calvarial Bone ◽  
Content Type ◽  
Canal Stenosis ◽  
Optic Canal Stenosis ◽  
Fine Print

✓ The authors report on the case of a 14-year-old boy who presented with bilateral visual impairment due to optic canal stenosis caused by hyperplasia of the bone marrow arising from anemia. The patient had hereditary hemolytic anemia with unstable hemoglobin of the Christchurch type. This congenital form of anemia caused hyperplasia of the bone marrow as well as hyperostosis of the entire calvarial bone, which in turn led to optic canal stenosis. The patient underwent surgical decompression of the optic canal, resulting in significant improvement in visual acuity. Pathological findings in the calvarial bone indicated hypertrophic bone marrow with no other specific features such as neoplastic pattern or fibrous dysplasia. With the exception of objective hearing impairment, no other significant cranial neuropathy has been detected thus far. On reviewing the published literature, this case was found to be the first in which hyperostosis due to congenital anemia resulted in symptomatic entrapment neuropathy of the optic nerve. The authors concluded that surgical decompression effectively improves visual acuity.

Optic canal syndrome due to posterior ethmoid sinus mucocele

1986 ◽  
Vol 65 (6) ◽  
pp. 871-873 ◽  
Author(s):  
Chung P. Yue ◽  
Kirpal S. Mann ◽  
Fu L. Chan
Keyword(s):  
Optic Nerve ◽  
Computerized Tomography ◽  
Ethmoid Sinus ◽  
Optic Canal ◽  
Content Type ◽  
Anatomical Relationship ◽  
Relationship Of ◽  
Canal Syndrome ◽  
Fine Print

✓ A case of mucocele of the posterior ethmoid sinus presenting as unilateral blindness without pain, proptosis, or diplopia is reported. Computerized tomography (CT) demonstrated the precise anatomical relationship of the mucocele to the optic nerve inside the optic canal. It is proposed to use the term “optic canal syndrome” for patients with such clinical and CT presentation. Combined transcranial excision and transnasal drainage resulted in dramatic recovery of vision.

Surgical management of meningiomas involving the optic nerve sheath

2004 ◽  
Vol 101 (6) ◽  
pp. 951-959 ◽  
Author(s):  
Uta Schick ◽  
Uwe Dott ◽  
Werner Hassler
Keyword(s):  
Optic Nerve ◽  
Postoperative Radiotherapy ◽  
Visual Outcome ◽  
Tumor Location ◽  
Optic Nerve Sheath ◽  
Optic Canal ◽  
Content Type ◽  
Nerve Sheath ◽  
Fine Print

Object. The management of optic nerve sheath meningiomas (ONSMs) remains controversial but includes surgery, radiotherapy, and plain observation. Surgery is often thought to result in postoperative blindness. The authors report on a large series of patients surgically treated for ONSM, with an emphasis on the visual outcome. Methods. Seventy-three patients with ONSMs who had undergone surgery between 1991 and 2002 were retrospectively analyzed. The standard surgical approach consisted of pterional craniotomy, intradural (54 patients) or extradural (10 patients) unroofing of the optic canal, or a combined procedure (seven patients). Thirty-two tumors demonstrated extension through the optic canal. Twenty-nine tumors reached the chiasm or contralateral side. Patients with intraorbital flat tumors should undergo radiotherapy instead of surgery. Those with a large intraorbital mass and no useful vision should undergo surgery. Tumors extending intracranially through the optic canal are amenable to decompression of the optic canal and resection of the intracranial portion. The follow-up period was a mean 45.4 months (range 6–144 months). Ten patients underwent postoperative radiotherapy. Visual acuity was not significantly influenced by surgery but did become worse with a longer duration of preoperative symptoms and a longer follow-up period. A tumor location in the optic canal was another negative factor. Radiotherapy preserved vision in five of 10 cases. Conclusions. The loss of vision in patients with ONSM is only a matter of time. In patients with good vision the role of radiotherapy becomes more important. Surgery is recommended for intracranial tumors to prevent contralateral extension.

Retrobulbar optic nerve cysticercosis

1996 ◽  
Vol 84 (2) ◽  
pp. 293-296 ◽  
Author(s):  
Charles François Bousquet ◽  
Thierry François Laurent Dufour ◽  
Philippe Claude Eric Derome
Keyword(s):  
Visual Acuity ◽  
Optic Nerve ◽  
Pathological Findings ◽  
En Bloc ◽  
Content Type ◽  
Nerve Tumor ◽  
First Case ◽  
Aesthetic Results ◽  
Surgical Aspects ◽  
Fine Print

✓ The authors report a first case of intraoptic neurocysticercosis in a 12-year-old boy living on Reunion Island. Cysticercosis of the retrobulbar portion of the optic nerve is rare. Because of the patient's age and disturbances in both visual acuity and visual field, it was initially believed to be an optic nerve tumor. Computerized tomography scans and surgical aspects were confirmed by pathological findings. A conservative removal using en bloc orbitotomy showed good functional and aesthetic results.

Reversal of optic canal stenosis in osteopetrosis after bone marrow transplant

2000 ◽  
Vol 130 (3) ◽  
pp. 370-372 ◽  
Author(s):  
Natalie C Kerr ◽  
Winfred C Wang ◽  
Yasaman Mohadjer ◽  
Barrett G Haik ◽  
Sue C Kaste ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Transplant ◽  
Marrow Transplant ◽  
Optic Canal ◽  
Canal Stenosis ◽  
Optic Canal Stenosis

Visual changes after gamma knife surgery for optic nerve tumors

2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 143-146 ◽  
Author(s):  
Yang Kwon ◽  
Jun Seok Bae ◽  
Jae Myung Kim ◽  
Do Hee Lee ◽  
Soon Young Kim ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Gamma Knife ◽  
Gamma Knife Surgery ◽  
Optic Glioma ◽  
Content Type ◽  
Nerve Sheath ◽  
Optic Nerve Sheath Meningioma ◽  
Optic Nerve Tumors ◽  
Visual Changes ◽  
Fine Print

✓ Tumors involving the optic nerve (optic glioma, optic nerve sheath meningioma) are benign but difficult to treat. Gamma knife surgery (GKS) may be a useful treatment. The authors present data obtained in three such cases and record the effects of GKS.

Neuroepithelial cyst in the optic nerve

1987 ◽  
Vol 67 (1) ◽  
pp. 137-139 ◽  
Author(s):  
Alberto Isla ◽  
José Palacios ◽  
José M. Roda ◽  
Manuel Gutierrez ◽  
Cesáreo González ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Computerized Tomography ◽  
Cystic Lesion ◽  
Histological Study ◽  
Content Type ◽  
Neuroepithelial Cyst ◽  
Loss Of Vision ◽  
Progressive Loss ◽  
Suprasellar Region ◽  
Fine Print

✓ A 34-year-old woman presented with progressive loss of vision in her left eye of 2 months' evolution. Computerized tomography showed a hypodense lesion in the suprasellar region. At surgery a cystic lesion was found inside the optic nerve. Histological study proved it to be a neuroepithelial cyst. The pathogenesis of a neuroepithelial cyst in such an exceptional site is discussed.

Intraorbital optic nerve hemangioblastoma with von Hippel-Lindau disease

1982 ◽  
Vol 56 (3) ◽  
pp. 426-429 ◽  
Author(s):  
Seiich In ◽  
Jun Miyagi ◽  
Nobuto Kojho ◽  
Shinken Kuramoto ◽  
Masaki Uehara
Keyword(s):  
Optic Nerve ◽  
Content Type ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Disease ◽  
Dural Attachment ◽  
Microscopic Findings ◽  
Fine Print

✓ An intraorbital hemangioblastoma of the optic nerve is reported in a 23-year-old woman with von Hippel-Lindau disease. The absence of dural attachment and the microscopic findings were characteristic of hemangioblastoma. Four years later the patient developed a cystic hemangioblastoma in the left cerebellum which was successfully treated.

Total removal of large global meningiomas at the medial aspect of the sphenoid ridge

1971 ◽  
Vol 34 (1) ◽  
pp. 107-113 ◽  
Author(s):  
Albert W. Cook
Keyword(s):  
Optic Nerve ◽  
Middle Cerebral Artery ◽  
Operative Technique ◽  
Middle Meningeal Artery ◽  
Medial Aspect ◽  
Total Removal ◽  
Content Type ◽  
Meningeal Artery ◽  
Sphenoid Ridge ◽  
Fine Print

✓ An operative technique for total removal of large global meningiomas at the medial aspect of the sphenoid ridge is described, and experience with 11 patients reported. The technique involves extradural liberation of the dural and tumor attachments to the underlying bone, and extradural occlusion of the blood supply through bone and middle meningeal artery. Subsequent procedures are carried out sequentially in the parasellar area to free the optic nerve and carotid, in the subtemporal tentorial region to release tumor from neighboring structures, and in the Sylvian fissure to isolate the middle cerebral artery.

Optic nerve ganglioglioma

1993 ◽  
Vol 78 (6) ◽  
pp. 979-982 ◽  
Author(s):  
William Y. Lu ◽  
Marc Goldman ◽  
Byron Young ◽  
Daron G. Davis
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nervous System ◽  
Optic Nerve ◽  
Magnetic Resonance ◽  
Visual Field ◽  
Resonance Imaging ◽  
Optic Nerve Glioma ◽  
Content Type ◽  
Visual Field Deficit ◽  
Fine Print

✓ Gangliogliomas of the optic nerve are extremely rare. The case is reported of a 38-year-old man who presented with a visual field deficit and was discovered to have an optic nerve ganglioglioma. The possible embryological origins of this neoplasm, its histological and immunohistochemical features, and its appearance on magnetic resonance imaging are examined. The prognoses of optic nerve glioma and of gangliogliomas occurring elsewhere in the nervous system are compared.

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