نتایج جستجو برای: nerve sheath neoplasms

تعداد نتایج: 658028  

2014
Jong Hyung Yoon Hyun-Sung Lee Jong In Chun Seog-Yun Park Hyeon Jin Park Byung-Kiu Park

Malignant peripheral nerve sheath tumor (MPNST) is a rare soft tissue malignancy usually found in patients with neurofibromatosis type 1 (NF1) with a poor outcome. Although MPNST can be found in any part of the body including head and neck or extremities, intrathoracic MPNST with or without NF1 is uncommon, especially in children or adolescents. Reported herein is a case of huge intrathoracic M...

Journal: :Investigative ophthalmology & visual science 1999
J C Morrison E C Johnson W O Cepurna R H Funk

PURPOSE To describe the arterial blood supply, capillary bed, and venous drainage of the rat optic nerve head. METHODS Ocular microvascular castings from 6 Wistar rats were prepared by injection of epoxy resin through the common carotid arteries. After polymerization, tissues were digested with 6 M KOH, and the castings washed, dried, and coated for scanning electron microscopy. RESULTS Imm...

Journal: :بینا 0
فهیمه اسدی آملی f asadi-amoli تهران- میدان قزوین- بیمارستان فارابی شهرزاد فیروزبخت sh firozbakht تهران- میدان قزوین- بیمارستان فارابی علی صادقی طاری a sadeghi tari تهران- میدان قزوین- بیمارستان فارابی

purpose: to assess the histopathological and immunohistochemical features of orbital spindle cell tumors. methods: a descriptive, retrospective study was performed on 63 pathology reports on all types of orbital spindle cell tumors at the pathology department of farabi hospital between 1995 and 2005. immunohistochemistry studies for different markers, such as smooth muscle actin, desmin, s100 p...

Journal: :emergency journal 0
keihan golshani department of emergency medicine, alzahra hospital, isfahan university of medical sciences, isfahan, iran mehdi ebrahim zadeh department of emergency medicine, nemazi hospital, shiraz university of medical sciences, shiraz, iran ziba farajzadegan community medicine department, faculty of medicine, isfahan university of medical sciences, isfahan, iran fariborz khorvash isfahan neurosciences research center, isfahan university of medical sciences, isfahan, iran

introduction: elevated intracranial pressure (icp) is a major and potentially lethal disorder in patients admitted to the emergency department (ed). several methods are being used to investigate for elevated icp. here we assessed and compared the diagnostic accuracy of two existing tools of ophthalmoscopy and optic nerve ultrasonography in detection of elevated icp. methods: 131 participants wi...

2009
Christos Kosmas George Tsakonas Katerina Evgenidi Argyris Gassiamis Lefkothea Savva Nikolaos Mylonakis Athanasios Karabelis

INTRODUCTION Malignant peripheral nerve sheath tumors are rare soft tissue sarcomas. They are considered to carry a poor prognosis with current therapeutic approaches. Successful treatment depends on a multimodal approach. CASE PRESENTATION The authors report two cases with malignant peripheral nerve sheath tumors arising from pre-existing neurofibromas in the grounds of neurofibromatis-type ...

Journal: :Investigative ophthalmology & visual science 1979
J P Davis V M Haughton G J Harris O P Eldevik W E Gager

Metrizamide is a water-soluble, nonionic radiocontrast medium that penetrates better into narrow subarachnoid spaces than do oily contrast media or gas. We performed metrizamide optic nerve thecography on five cats with iatrogenic orbital lesions. Optic thecograms successfully demonstrated displacement of the optic nerve, obstruction of the optic nerve sheath subarachnoid space, and extravasati...

Journal: :BMJ case reports 2013
Suhair Twaij Aabgina Shafi Terry Marshall Mohamad Jabir

A rare case of caruncular neurofibroma in a patient who did not have neurofibromatosis. To remember peripheral nerve sheath tumours in the differential diagnosis of caruncular lesions. Excisional biopsy proved to be adequate treatment in our case.

Journal: :Canadian journal of surgery. Journal canadien de chirurgie 2009
Sebastiano Pantè Maria-Luisa Terranova Grazia Leonello Francesco Fedele Giorgio Ascenti Ciro Famulari

E8 J can chir, Vol. 52, N 1, février 2009 © 2009 Association médicale canadienne S chwannoma is a benign tumour arising from Schwann cells of the peripheral nerve sheath; histologic predominance of degenerative findings is typical of a rare variant, the “ancient” schwannoma. Retroperitoneal pelvic localization of these tumours is quite rare. Even more exceptional is development in the perineal ...

2013
Tuba Bayindir M. Tayyar Kalcioglu Mehmet T. Cicek Nese Karadag Abdurrahman Karaman

Schwannomas are usually single, encapsulated, and benign tumors of the nerve sheath that arise from the perineural Schwann cells. Schwannomas are mostly seen in the fourth decade. Despite its location in the head and neck region is 25-45%, lip location of schwannoma are very rare. We present a case of a upper lip schwannoma in the pediatric age and review the literature.

2015
J Ortega EG Urias C Arteaga

Introduction Preeclampsia / eclampsia is a potentially serious disease associated with maternal complications, including neurological. In patients with increased intracranial pressure, the diameter of the optic nerve sheath increases because of its close association with the flow of cerebrospinal fluid. Her measurements using ultrasound transorbital have shown correlation with increased intracr...

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