Webfluid(CSF) sheath around the optic nerve. Clinicians and radiologists are familiar with the spinal dural ectasias and meningoceles in NF; however, dural ectasia of the optic nerve is not often mentioned in literature owing to its rarity. Also known as optic nerve sheath meningocele, this lesion merits differentiation from the WebThirteen patients with dilated intraorbital optic nerve sheaths with an expanded, patulous cerebrospinal fluid (CSF) space were studied with high-resolution computed tomography (CT) or magnetic resonance imaging (MRI). Eleven patients had bilateral findings. Headache or visual complaints, or both, were present in all patients.
Dural Ectasia of the Optic Nerve: A Rare Presentation in
Weboptic hydrops, or meningocele [ 46 ]. In this condition, there is increased cerebrospinal ß uid in the intra-sheath space of unknown etiology. These patients may present with symptoms of reduced vision and can have fundus Þ ndings including atrophy of the optic disc, disc swelling, and choroidal folds. Case Study 126 Optic Nerve Sheath Meningioma WebAbstract A wide variety of neoplastic and non-neoplastic processes can cause the intraorbital optic nerve and sheath to be enlarged on CT. The authors reviewed a large number of high-resolution CT scans and divided enlargement into three groups: tubular, fusiform, and excrescent. bing uk search engine
(PDF) Optic nerve sheath meningocele - ResearchGate
WebA diagnosis of optic nerve sheath meningocele with secondary bulging into the globe was made based on enhanced depth imaging-optical coherence tomography and radiographic … WebIntroduction. Primary optic nerve sheath meningioma (PONSM) is a proliferation of meningothelial cells within the nerve sheath of the orbital or intracanalicular portion of the … WebJul 5, 2024 · Meningioma of the optic nerve sheath infiltrating the posterior globe and hemangioblastoma (von Hippel–Lindau disease) may also produce intraglobal calcifications. Extraglobal calcifications are most often of vascular origin (arteriosclerosis, phlebolith, encapsulated venous malformation, and AVM). bingum lighthouses monstrosities umbrellas j