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MRI Findings of Mucocele in the Sinuses Toshio Yamashita 1 1Department of Otolaryngology, Kansai Medical University pp.541-546
Published Date 1989/7/20
DOI https://doi.org/10.11477/mf.1411200376
  • Abstract
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Eight patients with pyocele or mucocele in thefrontal, ethmoidal and sphenoidal sinuses wereexamined with magnetic resonance imaging (MRI)and the results were compared with conventionaltomography and CT results.

CT is a useful tool in detecting mucocele in the sinuses, however, it has limitation of evaluating the qualitative and solid structural changes. MRI is able to show the entire feature of cysts with multidirectional imaging, and the extent of the cysts especially to the orbit and skull base could be identified three-dimensionally. Long spin echo (SE) image showed a higher signal intensity than short SE image in all cases and it was possible to diagnose the content of the cysts and to differen-tiate between cyst and tumor. Bone destruction could not be visualized by MRI, therefore, CT should be used in combination with MRI in selected cases.


Copyright © 1989, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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