Results 231 to 240 of about 70,444 (292)
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Neurosurgery, 1978
Abstract Reports of melanotic nerve sheath tumors of Schwann cell origin are rare, only three having been found in the literature. Two new cases of spinal intradural melanotic nerve sheath tumors are reported and the literature is reviewed. Controversy has arisen in regard to the origin of melanin within these tumors.
W L, McGavran +2 more
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Abstract Reports of melanotic nerve sheath tumors of Schwann cell origin are rare, only three having been found in the literature. Two new cases of spinal intradural melanotic nerve sheath tumors are reported and the literature is reviewed. Controversy has arisen in regard to the origin of melanin within these tumors.
W L, McGavran +2 more
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British Journal of Neurosurgery, 2008
Trigeminal schwannomas are the second most common intracranial schwannoma. They may occur sporadically or in association with neurofibromatosis type 2. The vast majority are benign in nature although malignancies have been reported. They may present with a range of symptoms because of their variable locations in areas with multiple differing functional
S P, MacNally +4 more
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Trigeminal schwannomas are the second most common intracranial schwannoma. They may occur sporadically or in association with neurofibromatosis type 2. The vast majority are benign in nature although malignancies have been reported. They may present with a range of symptoms because of their variable locations in areas with multiple differing functional
S P, MacNally +4 more
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Surgery, 2013
The extrapancreatic nerve plexus may give rise to schwannomas. The aim of this study was to define the clinicopathologic features of peripancreatic schwannoma and to allow improved diagnosis and treatment for this condition.A retrospective analysis was performed on 17 patients with pathologically proven peripancreatic schwannoma (defined as schwannoma ...
Ting-Chun, Kuo +6 more
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The extrapancreatic nerve plexus may give rise to schwannomas. The aim of this study was to define the clinicopathologic features of peripancreatic schwannoma and to allow improved diagnosis and treatment for this condition.A retrospective analysis was performed on 17 patients with pathologically proven peripancreatic schwannoma (defined as schwannoma ...
Ting-Chun, Kuo +6 more
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Survey of Ophthalmology, 2013 Schwannoma is a proliferation of neoplastic Schwann cells. Whereas schwannomas of the head and neck region are common, intraocular tissues are rarely affected.
Paul T. Finger +2 more
exaly +2 more sources
Quality of Life in 807 Patients with Vestibular Schwannoma: Comparing Treatment Modalities
Otolaryngology - Head and Neck Surgery, 2017Hein Putter +2 more
exaly +2 more sources
Otolaryngology–Head and Neck Surgery, 1994
Intraiabyrinthine schwannomas are unusual tumors of the vestibule, cochiea, semicircular canals, or some combination of these three, which in the past have been reported as incidental findings at autopsy or surgery. We summarize eight cases of intralabyrinthine schwannomas diagnosed by magnetic resonance Imaging at the House Ear Clinic during the past ...
K J, Doyle, D E, Brackmann
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Intraiabyrinthine schwannomas are unusual tumors of the vestibule, cochiea, semicircular canals, or some combination of these three, which in the past have been reported as incidental findings at autopsy or surgery. We summarize eight cases of intralabyrinthine schwannomas diagnosed by magnetic resonance Imaging at the House Ear Clinic during the past ...
K J, Doyle, D E, Brackmann
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The Japanese Journal of Thoracic and Cardiovascular Surgery, 2005
A 58-year-old woman was admitted due to an abnormal shadow on chest X-ray, without any symptoms. Chest computed tomography showed a round mass in the anterior segment of the right upper lobe. Segmentectomy was performed and histopathological examination revealed a primary neurogenic tumor of Schwann cell origin.
Takashi, Ohtsuka +5 more
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A 58-year-old woman was admitted due to an abnormal shadow on chest X-ray, without any symptoms. Chest computed tomography showed a round mass in the anterior segment of the right upper lobe. Segmentectomy was performed and histopathological examination revealed a primary neurogenic tumor of Schwann cell origin.
Takashi, Ohtsuka +5 more
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European Radiology, 2001
Olfactory schwannomas are very rare. For this reason they have never been diagnosed preoperatively. We report a case and describe the CT and MR imaging findings. Clinically, the young age of presentation, and radiologically the presence of bone scalloping, and the absence of both bone sclerosis and a dural tail, may help in the differential diagnosis ...
Andrés Ramos, Amador +3 more
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Olfactory schwannomas are very rare. For this reason they have never been diagnosed preoperatively. We report a case and describe the CT and MR imaging findings. Clinically, the young age of presentation, and radiologically the presence of bone scalloping, and the absence of both bone sclerosis and a dural tail, may help in the differential diagnosis ...
Andrés Ramos, Amador +3 more
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Schwannoma of the foot: report of four cases and literature review
Acta bio-medica : Atenei Parmensis, 2019Schwannoma is a soft tissue tumor that rarely presents in the foot. Patients are usually asymptomatic, but in some cases symptoms typically result from the mass effect and direct involvement of the nerve and surrounding tissue.
A. Angelini +5 more
semanticscholar +1 more source
Journal of Bronchology & Interventional Pulmonology, 2012
Schwannomas are benign nerve-sheath tumors that arise from Schwann cells. They can present as endobronchial lesions with symptoms of obstruction and hemoptysis. We describe the first case of multiple endobronchial schwannomas at 3 different sites in a single patient. The autofluorescence ratio was
Elaine, Dumoulin +4 more
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Schwannomas are benign nerve-sheath tumors that arise from Schwann cells. They can present as endobronchial lesions with symptoms of obstruction and hemoptysis. We describe the first case of multiple endobronchial schwannomas at 3 different sites in a single patient. The autofluorescence ratio was
Elaine, Dumoulin +4 more
openaire +2 more sources