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1,934 Possible Causes for Benign, and, nerve, of, optic, sheath, Tumor

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  • Neurofibroma

    King AA, DeBaun MR, Riccardi VM, Gutmann DH (2000) Malignant peripheral nerve sheath tumors in neurofibromatosis 1.[doi.org] Abstract Benign neurofibromas, the main phenotypic manifestations of the rare neurological disorder neurofibromatosis type 1, degenerate to malignant tumors associated to[ncbi.nlm.nih.gov] […] compression of the motor nerves.[ncbi.nlm.nih.gov] tumors in NF2 patients and suggests that the relationship between neurofibroma and schwannoma tumors is closer than previously suspected..[ncbi.nlm.nih.gov] (Dr North) has tackled some of the more challenging issues, such as the basis for learning disabilities and the optimal means for early detection of optic gliomas.[books.google.com] Neurofibroma and neurofibromatosis are considered aggressive benign conditions.[limbpreservation.org] Common clinical findings on exam include café au lait spots, neurofibromas, Lisch nodules, and optic gliomas.[epilepsy.com]

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  • Neurofibromatosis Type 1

    Objective: In this study, we review the institution's experience in treating malignant peripheral nerve sheath tumors (MPNSTs).[ncbi.nlm.nih.gov] The association of NF-1 with benign and malignant tumors is well established.[ncbi.nlm.nih.gov] Neurofibromatosis Type 1 (NF1) is an autosomal dominant transmitted cancer predisposing syndrome, with peripheral nerve tumors being a prominent feature.[ncbi.nlm.nih.gov] While NF1-associated gliomas can be found in several brain regions, the majority arise in the optic nerves, chiasm, tracts, and radiations (optic pathway gliomas; OPGs).[ncbi.nlm.nih.gov] INTRODUCTION: The prognosis of malignant peripheral nerve sheath tumor (MPNST) with neurofibromatosis type 1 (NF-1) is worse than that of a solitary MPNST, because of the[ncbi.nlm.nih.gov] Here, we report the case of a patient with NF1 who developed synchronous malignant peripheral nerve sheath tumors, one with a focus of angiosarcoma.[ncbi.nlm.nih.gov] Standard uptake value (SUV) and other parameters can help to distinguish benign and malignant lesions in patient with NF1.[ncbi.nlm.nih.gov]

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  • Idiopathic Intracranial Hypertension

    KEYWORDS: Idiopathic intracranial hypertension; optic nerve sheath decompression; optic nerve sheath fenestration; papilledema; pseudotumor cerebri[ncbi.nlm.nih.gov] 2015 ICD-9-CM Diagnosis Code 348.2 Benign intracranial hypertension 2015 Billable Thru Sept 30/2015 Non-Billable On/After Oct 1/2015 ICD-9-CM 348.2 is a billable medical code[icd9data.com] VIth nerve palsy is the most common cranial nerve deficit related to that condition.[ncbi.nlm.nih.gov] Symptoms are similar to those of a brain tumor but there is no tumor.[sharecare.com] In this non-interventional case-control study, spectral-domain optical coherence tomography (SD-OCT) was used to analyze the retinal and optic nerve head (ONH) morphology[ncbi.nlm.nih.gov] OBJECTIVE: To compare the mean optic nerve sheath diameter (ONSD) in patients with idiopathic intracranial hypertension (IIH) versus normal healthy individuals using B-scan[ncbi.nlm.nih.gov] Takaka Benign intracranial hypertension (BIH) is a rare but potentially serious condition.[medsafe.govt.nz]

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  • Neurilemmoma

    Abstract Schwannoma (neurilemmoma) are common benign tumors arising from the peripheral nerve sheath. Malignant transformation is uncommon.[ncbi.nlm.nih.gov] NEURILEMOMAS (benign schwannomas) are found in 1.5% 1 to 18% 2,3 of patients with von Recklinghausen's neurofibromatosis and make up 1% of orbital tumors. 4-9 They rarely,[jamanetwork.com] Abstract A case report of intraparotid facial nerve neurilemmoma is presented. The survey of this pathology is reviewed.[ncbi.nlm.nih.gov] Abstract A 47-year-old male with a solid, previously cystic tumor in the subphrenic part of the liver consulted for surgery.[ncbi.nlm.nih.gov] They arise from any peripheral, spinal or cranial nerve except the olfactory and optic.[ncbi.nlm.nih.gov] A provisional diagnosis of malignant schwannoma of right vagus nerve was made.[ncbi.nlm.nih.gov] It has been reported in association with spheno-orbital meningioma, optic nerve sheath meningioma, orbital fibro-osseous diseases and intracranial meningioma, but never with[ncbi.nlm.nih.gov]

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  • Perineurioma

    The malignant counterpart of a nerve sheath tumor is designated as a malignant peripheral nerve sheath tumor (MPNST).[ncbi.nlm.nih.gov] BACKGROUND: We describe a rare case of a rapidly recurring benign meningial-based perineurioma.[ncbi.nlm.nih.gov] RESULTS: Surgical exploration revealed expansion of the hypoglossal nerve.[ncbi.nlm.nih.gov] Abstract The descriptive term hybrid peripheral nerve sheath tumor refers to any neoplasm of the neurilemmal apparatus composed of more than one pathologically defined tumoral[ncbi.nlm.nih.gov] […] code of 1- 5 , or 9: C70.0 Cerebral meninges, NOS C71.0 Cerebrum C71.1 Frontal lobe C71.2 Temporal lobe C71.3 Parietal lobe C71.4 Occipital lobe C72.2 Olfactory nerve C72.3 Optic[ccrcal.org] Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics. computer optical discs.[dvh.bookmaps.org] We describe the clinicopathologic and immunohistochemical characteristics of 9 cases of a benign cutaneous plexiform nerve sheath tumor located on the lips and exhibiting[ncbi.nlm.nih.gov]

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  • Optic Nerve Glioma

    […] type 1 and an isolated optic nerve glioma with documented progression and visual loss in which clinical signs improved and visual deterioration stabilized after optic nerve sheath[ncbi.nlm.nih.gov] BACKGROUND: Patients operated on for the most common benign pathologies of the orbital cavity-optic nerve glioma, sheath meningioma and neurinoma-should be surgically treated[ncbi.nlm.nih.gov] Optic nerve glioma is the most common type of tumor of this nerve.[symptoma.com] One patient with involvement of the chiasm manifested tumor growth; no other recurrences or evidence of growth occurred in the remaining patients, including 1 other case with[ncbi.nlm.nih.gov] Abstract Optic nerve glioma in patients with neurofibromatosis is a relatively benign neoplasm. It is slow growing and considered by some to be a hamartoma.[ncbi.nlm.nih.gov] Symptoms of brain tumors in the optic nerve may include: headaches visual changes or double vision clumsy, uncoordinated walk The symptoms of a brain tumor may resemble other[hopkinsmedicine.org] Because OSNMs tend to grow outward from the nerve sheath, they are less likely to efface the CSF layer between the nerve and sheath a property that sometimes helps to differentiate[casesjournal.biomedcentral.com]

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  • Intracranial Hypertension

    The incidence of PAM, empty sella, tortuosity of the optic nerve, and hydrops of optic nerve sheath was evaluated.[ncbi.nlm.nih.gov] Takaka Benign intracranial hypertension (BIH) is a rare but potentially serious condition.[medsafe.govt.nz] KEYWORDS: Optic nerve sonography; idiopathic intracranial hypertension; optic nerve sheath diameter[ncbi.nlm.nih.gov] If malignant tumors are the underlying cause, the use of steroids such as dexamethasone has shown benefit in reducing cerebral edema.[symptoma.com] In this non-interventional case-control study, spectral-domain optical coherence tomography (SD-OCT) was used to analyze the retinal and optic nerve head (ONH) morphology[ncbi.nlm.nih.gov] PURPOSE: The enlargement of optic nerve sheath diameter (ONSD) has been proven to be related with raised intracranial pressure (ICP).[ncbi.nlm.nih.gov] Benign intracranial hypertension: Increased pressure within the brain in the absence of a tumor.[medicinenet.com]

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  • Intraneural Perineurioma

    Intraneural perineurioma is a rare, benign, nerve sheath tumor that typically presents with isolated peripheral mononeuropathy.[neupsykey.com] We conclude intraneural perineurioma is a benign hypertrophic (non onion bulb) peripheral nerve tumour that presents insidiously in young people and is motor predominant with[ncbi.nlm.nih.gov] […] a single affected nerve.[ncbi.nlm.nih.gov] The tumor had already been diagnosed as a spindle cell tumor from an ultrasound-guided biopsy.[doi.org] Abstract Perineuriomas are benign neoplasms composed of perineurial cells.[ncbi.nlm.nih.gov] Intraneural perineurioma, previously known as localized hypertrophic neuropathy, is a rare benign peripheral nerve sheath tumor arising from perineurium.[ncbi.nlm.nih.gov] We report a case of a 26-year-old woman with an intraneural perineurioma of the left sciatic nerve confirmed with excisional biopsy and pathologic analysis.[ncbi.nlm.nih.gov]

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  • Malignant Peripheral Nerve Sheath Tumor

    A malignant peripheral nerve sheath tumor ( MPNST ) is a form of cancer of the connective tissue surrounding nerves.[en.wikipedia.org] Here, the authors present a very rare case of spindle cell type MPNST arising in benign schwannoma.[ncbi.nlm.nih.gov] […] rare in the trigeminal nerve.[ncbi.nlm.nih.gov] […] and malignancies as part of the BAP1 tumor predisposition syndrome, a recently recognized hereditary cancer syndrome.[ncbi.nlm.nih.gov] Optic gliomas in children with neurofibromatosis type 1. J Pediatr 1989 ; 114 : 788 –92. Hoyt WF , Baghdassarian SA.[doi.org] KEYWORDS: Benign peripheral nerve sheath tumor (BPNST); Biopsy; Diagnosis; Malignant peripheral nerve sheath tumor (MPNST); Spinal epidural peripheral nerve sheath tumors[ncbi.nlm.nih.gov] Two of 68 benign lesions and 7/53 (13%) MPNST had at least 5% PD-L1 staining.[ncbi.nlm.nih.gov]

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  • Plexiform Neurofibroma

    Abstract About 50% of all malignant peripheral nerve sheath tumors (MPNSTs) arise as neurofibromatosis type 1 associated lesions.[ncbi.nlm.nih.gov] Surgery and pathology revealed subperiosteal hemorrhage into a benign, plexiform neurofibroma.[ncbi.nlm.nih.gov] Abstract Plexiform neurofibromas are benign tumors of the peripheral nerve. Diagnosis may be challenging, if they present mimicking other peripheral nerve pathologies.[ncbi.nlm.nih.gov] In mouse models of plexiform neurofibroma formation, Nf1 haploinsufficient mast cells promote inflammation, accelerating tumor formation and growth.[ncbi.nlm.nih.gov] Ultrasound cannot differentiate between a benign and malignant lesion.[symptoma.com] Some of the more common orbital and eyelid findings in NF1 are plexiform neurofibromas, causing mechanical ptosis and proptosis, optic nerve gliomas and sphenoid wing dysplasia[scitechnol.com] […] glioma (tumor of the optic pathway) Two or more Lisch nodules (benign iris hamartomas) A distinctive bony lesion Dysplasia of the sphenoid bone Dysplasia or thinning of long[clinicaltrials.gov]

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