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Imaging diagnosis of orbital tumors:solitary fibrous tumor, optic nerve sheath meningioma, and orbital cavernous venous malformation Arisa Ohara 1 1Department of Radiology Kyorin University, Faculty of Medicine Keyword: 眼窩SFT , 視神経鞘髄膜腫 , 海綿状血管奇形 pp.1299-1308
Published Date 2021/10/10
DOI https://doi.org/10.18888/rp.0000001759
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An orbital tumor as the cause of orbital protrusion and decreased visual acuity is not a rare remark in the computed tomography scan or magnetic resonance imaging in daily clinical settings. In order for a correct diagnosis, clinical information such as patients’ age and sex as well as one of imaging such as the location, morphology, density, signal, and enhancement pattern of the tumor are in necessity. There are intraorbitally organs such as the globe, optic nerve, extraocular muscles, lacrimal glands and vessels, and their careful radiographic interpretation is essential. Dynamic study of either computed tomography scan or magnetic resonance imaging is crucial for distinguishing orbital cavernous venous malformations from other orbital masses such as solitary fibrous tumor despite the study of magnetic resonance imaging is favored in the aspect of radiation exposure to optic lens. Tram track sign is characteristic for optic nerve sheath meningioma, which is easier to be evaluated with multi-planar imaging of coronal and sagittal views. Because of its frequent derivation from intracranial meningiomas, the whole brain careful radiographic interpretation is essential.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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