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KMID : 1103720120670020073
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Journal of the Korean Society of Radiology
2012 Volume.67 No. 2 p.73 ~ p.77
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Magnetic Resonance Imaging of the Intradural Prepontine Chordoma Mimicking an Epidermoid Cyst: Pathologic Correlation
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Cho Hyoun
Yu In-Kyu
Kim Seung-Min
Kim Han-Kyu
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Abstract
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Intracranial chordomas, originating from remnants of the primitive notochord, are extradural tumors arising mostly at the sphenooccipital synchondrosis in the clivus. We present an unusual case of intradural chordoma at the prepontine cistern, with parenchymal compressive invasion to the pons. It was excised subtotally, followed by a second operation due to the increasing remnant tumor size during 8 months. A differential diagnosis for intradural chordoma must be considered when the preoperative MRI features are not consistent with an epidermoid cyst if there are multiple fine enhancing lesions on enhanced magnetic resonance images and no bright signal intensity on diffusion-weighted images. This report is concerned with the radiological findings in the intradural chordoma and the differential diagnosis focused on the epidermoid cyst.
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KEYWORD
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Chordoma, Epidermoid, Magnetic Resonance Imaging
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