Neurologia medico-chirurgica
Online ISSN : 1349-8029
Print ISSN : 0470-8105
ISSN-L : 0470-8105
Magnetic Resonance Imaging of Ecchordosis Physaliphora —Case Report—
Akira WATANABEMitsuro YANAGITARyoji ISHIITeruo SHIRABE
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1994 Volume 34 Issue 7 Pages 448-450

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Abstract

A rare case of ecchordosis physaliphora clearly demonstrated by magnetic resonance (MR) imaging is described in a 48-year-old male who presented with right hearing disturbance and reduction in sensation in the right side of his face due to a large cystic schwannoma. MR imaging revealed the large cystic schwannoma as well as an abnormal clival lesion. The clival lesion was hypointense on T1-weighted images and hyperintense on T2-weighted images, and not enhanced by gadolinium-diethylenetriamine-penta-acetic acid (Gd-DTPA) administration. The clival lesion was partially removed. The histological diagnosis was ecchordosis physaliphora. The postoperative course was uneventful. The absence of enhancement of ecchordosis physaliphora by Gd-DTPA administration may be a characteristic finding, in contrast to chordoma which is generally enhanced.

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© The Japan Neurosurgical Society
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