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A Case of Recurrent-Rupture Dermoid Cyst Masayuki SUMIDA 1 , Haruyoshi TAGUCHI 1 , Kazuhiko KUROKI 1 1Department of Neurosurgery, Hiroshima General Hospital Keyword: dermoid , rupture , convulsion , MRI pp.261-266
Published Date 1999/3/10
DOI https://doi.org/10.11477/mf.1436901694
  • Abstract
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A 58-year-old man was seen because of general convulsions. The neurological findings were normal athis first visit, but CT revealed a low density mass in the right hypothalamus with calcification. T1-weight-ed image revealed multiple high intensity lesions in the subarachnoid space. Only anti-epileptic drugs wereprescribed. He was readmitted one year later because of a traffic accident due to convulsions. CT and MRIrevealed other new lesions in the bilateral anterior horn. After four uneventful years, follow-up CT re-vealed a dilation of the third ventricle. MRI using the fat suppression method showed enhancement aroundthe main tumor and the wall of the lateral ventricles and stenosis of the aqueduct. Right frontotemporalcraniotomy was performed. Thickening of the arachnoids and floating lipid droplets were seen in the sub-arachnoid space. A yellowish tumor was found in the suprasellar region, adhering to the internal carotidartery. The tumor contained soft yellowish tissueand hair. Only partial removal was carried out because ofsevere adhesion to perforators. The lamina terminalis was opened after tumor removal. The postoperativecourse was uneventful except for transient diabetes insipidus.


Copyright © 1999, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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