Results 11 to 20 of about 21,956 (166)

Gliomas do nervo óptico: estudo de 11 casos Optic nerve gliomas: a study of 11 cases [PDF]

Arquivos de Neuro-Psiquiatria, 1996
Os gliomas do nervo óptico podem apresentar-se esporadicamente ou como componentes da neurofibromatose. São neoplasias raras, correspondendo a 2 a 5% dos tumores intracranianos e cerca de 6% dos tumores intra-orbitários. No presente estudo, analisamos 11
Luiz Fernando Bleggi Torres, Bruno Carneiro De Medeiros, Lúcia De Noronha, Ari Pedroso, Ricardo Ramina   +4 more
doaj   +3 more sources

The Optic Nerve Sheath Meningocele [PDF]

Swiss Journal of Radiology and Nuclear Medicine
Optic nerve sheath meningocele (ONSM) is a rare condition with only a few cases reported in the medical literature. The etiology is unknown. The condition is characterized by an expansion of the cerebrospinal fluid space surrounding the optic nerve ...
Ilson Sepúlveda Aguilar, Francisco Rivas-Rodriguez   +1 more
doaj   +2 more sources

Taking a close look at optic-nerve meningioma [PDF]

Philippine Journal of Ophthalmology, 2004
MENINGIOMAS, the most common benign intracranial neoplasms, most often involve the visual pathways in the parasellar and orbital regions, with compression or infiltration of the optic nerves or chiasm.
Anthony C. Arnold, MD
doaj   +1 more source

Neuro-Ophthalmic Complications of Vestibular Schwannoma Resection: Current Perspectives [PDF]

Eye and Brain, 2021
Stephanie J Chiu,1,2 Simon J Hickman,2,3 Irene M Pepper,1,2 Jennifer HY Tan,1,2 John Yianni,2,4 Joanna M Jefferis1,2,5 1Department of Ophthalmology, Royal Hallamshire Hospital, Sheffield, UK; 2Department of Medical Education, University of Sheffield ...
Chiu SJ, Hickman SJ, Pepper IM, Tan JHY, Yianni J, Jefferis JM   +5 more
doaj   +3 more sources

Rare primary choroidal melanoma in a dog, with optic nerve infiltration [PDF]

, 2022
Neoplasias melanocíticas intraoculares são comuns em cães, contudo, a localização destas neoplasias na coroide e a infiltração delas no nervo óptico são pouco frequentes.
Perlmann, Eduardo, Brunato, Carinne Liesse, Mello, Elaine Souza, Porfirio, Geórgia Bajer Fernandes de Freitas   +3 more
core   +1 more source

Unilateral simultaneous optic nerve and choroidal infiltration - unusual presentation of metastatic disease in breast carcinoma [PDF]

, 2021
Breast carcinoma metastasis can involve any ocular structures, but involvement of the optic nerve is extremely rare. Choroidal metastasis is usually multifocal as well as bilateral and occurs late.
Kumar, Poninder, Dubakka, S, Kumar, P, Kumar, A, Agrawal, M, Agrawal, Mohini, Kaushik, J, Kumar, Ashok, Dubakka, Srujana, Kaushik, Jaya   +9 more
core   +1 more source

Rare Retro-Orbital Intraconal Occurrence of Benign Schwannoma – A Case Report [PDF]

Journal of Clinical and Diagnostic Research, 2013
Schwannomas otherwise referred to as neurilemmomas are benign, slowly progressing, encapsulated tumors arising from Schwann cells in the peripheral nerve sheath. They may grow along any peripheral or cranial nerve. Amongst the cranial nerve schwannomas,
A.L. Hemalatha, Vani.D, Giripunja M, Bharathi M, Geetanjali S   +4 more
doaj   +1 more source

NF1 mutation drives neuronal activity-dependent initiation of optic glioma [PDF]

, 2021
Neurons have recently emerged as essential cellular constituents of the tumour microenvironment, and their activity has been shown to increase the growth of a diverse number of solid tumours1.
Chang, Kun-Che, James J. Lennon, Yu Ma, Jared D. Hysinger, David H. Gutmann, Lennon, James J, Toonen, Joseph A, Xia, Xin, Michelle Monje, Nicki F. Schindler, Joseph A. Toonen, Mulinyawe, Sara B, Liau, Linda M, Sara B. Mulinyawe, Belgin Yalçın, Guo, Xiaofan, Xiaofan Guo, Kun-Che Chang, Scheaffer, Suzanne, Hysinger, Jared D, Jeffrey L. Goldberg, Corina Anastasaki, Anitha Ponnuswami, Schindler, Nicki F, Anastasaki, Corina, Barron, Tara, Gutmann, David H, Xin Xia, Huguenard, John R, Yuan Pan, Erin M. Gibson, Yalçın, Belgin, Cobb, Olivia, Olivia Cobb, Gibson, Erin M, John R. Huguenard, Ponnuswami, Anitha, Linda M. Liau, Monje, Michelle, Suzanne Scheaffer, Ma, Yu, Goldberg, Jeffrey L, Pan, Yuan, Tara Barron   +43 more
core   +1 more source

Neoplasm of mixed mesenchymal and neuroepithelial origin of the optic nerve. [PDF]

British Journal of Ophthalmology, 1977
A case is reported of a 19-year-old male having right proptosis for 4 years because of a mixed meningioma and astrocytoma of the ipsilateral optic nerve. The sheath of this nerve is analogous to the leptomeninges, and neuroglial cells constitute the stroma of the nerve.
S, Shuangshoti, R, Panyathanya
openaire   +2 more sources

Role of the optic nerve sheath diameter in the assessment of the effectiveness of decompressive surgery after malignant middle cerebral artery infarction

Arquivos de Neuro-Psiquiatria, 2022
Background After a case of stroke, intracranial pressure (ICP) must be measured and monitored, and the gold standard method for that is through an invasive technique using an intraventricular or intraparenchymal device.
Ozgur Senol, Zeliha Cosgun, Emine Dagistan, Bekir Enes Demiryurek, Seckin Emre Cancan   +4 more
doaj   +1 more source