نتایج جستجو برای: nerve sheath tumors

تعداد نتایج: 347112  

2017
Joshua D. Burks Robert G. Briggs Chad A. Glenn John C. Greenert Cordell M. Baker Keren Bartal Greg A. Krempl Michael E. Sughrue

Here we present the case of a 36-year-old man who was found to have a symptomatic malignant neural sheath tumor growing from the C2 nerve root following a period of progressively worsening headaches. The patient was successfully treated with surgical resection resulting in resolution of cranial nerve deficits. Though uncommon, malignant peripheral nerve sheath tumor must be considered in the di...

Journal: :Turkish neurosurgery 2015
Nilgun Senol Omer Yilmaz

Schwannomas, also known as neurilemmomas, are generally benign peripheral nerve sheath tumors developing from Schwann cells. Peripheral nerve sheath tumors account for less than 8% of soft tissue neoplasms. Schwannomas are characterized by a slow-growing and non-infiltrating pattern. We report a 21-year-old, right-handed male, with a mass at his right elbow anterolateral region, that was slowly...

Journal: :Japanese journal of clinical oncology 2004
Akira Ogose Tetsuo Hotta Tetsuro Morita Takeshi Higuchi Hajime Umezu Satoshi Imaizumi Hiroshi Hatano Hiroyuki Kawashima Wenguang Gu Naoto Endo

OBJECTIVE To distinguish between benign and malignant peripheral nerve sheath tumors around the pelvis. METHODS A retrospective study of 30 patients with benign and malignant peripheral nerve sheath tumors located around the pelvis was performed. Clinical, imaging and histological features of 19 benign and 11 malignant peripheral nerve sheath tumors around the pelvis were reviewed retrospecti...

2013
Jun Wang Shao-wu Ou Zong-ze Guo Yun-jie Wang De-guang Xing

Malignant peripheral nerve sheath tumors of the scalp are rare lesions of the nervous system. Only 14 cases have been reported to date. The field of neurosurgery has struggled with diagnosing and treating these tumors. In this report, we present two cases of giant malignant peripheral nerve sheath tumors of the scalp and retrospectively analyze the clinical features, imaging findings, pathologi...

Journal: :iranian journal of pathology 2011
jahanshah salehinejad shadi saghafi amin rahpeyma reza zare-mahmoodabadi saeedeh khageh ahmadi

schwannoma(neurilemmoma) is a benign tumor originates from schwann cells. ancient (degenerated) schwannoma is a long-standing schwannoma with degenerative changes. head and neck region is one of the most common sites for nerve sheath tumors but intraosseous schwannoma is rare. the mandible is the most common site of occurrence for this lesion. we report a rare case of intraosseous ancient schwa...

Journal: :Indian Journal of Case Reports 2022

Schwannomas are mesenchymal tumors that characteristically benign and slow growing, which originate from any nerve with schwann cell sheath. Here, we report the case of a 28-year-old woman patient who was diagnosed stomach obstructive lesions causing severe gastric dilatation. She underwent distal gastrectomy histopathological examination tumor revealed one schwannoma.

Journal: :Annals of hematology & oncology 2023

Background: Malignant Peripheral Nerve Sheath Tumors (MPNSTs) are defined as malignant tumors arising from a peripheral nerve or displaying sheath differentiation. We report the first Korean case of MPNST ileum. Case Presentation: A 33-year-old female without family history neurofibromatosis type I complained lower abdominal pain. An abdomen computed tomography and enhanced magnetic resonance i...

Journal: :AJR. American journal of roentgenology 1983
R G Peyster E D Hoover B L Hershey M E Haskin

The optic nerves are well demonstrated by high-resolution computed tomography. Involvement of the optic nerve by optic gliomas and optic nerve sheath meningiomas is well known. However, nonneoplastic processes such as increased intracranial pressure, optic neuritis, Grave ophthalmopathy, and orbital pseudotumor may also alter the appearance of the optic nerve/sheath on computed tomography. Cert...

Journal: :Leprosy review 2013
Cintia Maria Oliveira Lima Paula Capanema Teixeira Da Costa Leonardo Carneiro Maria Leide W De Oliveira

Schwannomas or neurilemomas are the most frequent nerve sheath tumours and could be mistaken for a nerve abscess of leprosy as presented in this case report. These tumours may affect any nerve in the body mainly in the flexor surfaces of limb and nerve trunks, often at origin of spinal or cranial nerves. They usually grow slowly and appear as painless swellings for several years before being di...

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