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A case of meningioma protruding into the external auditory canal Midori Yamamoto 1 1Department of Radiology Kawasaki Medical School General Medical Center Keyword: 髄膜腫 , 外耳道 , 中耳 , 乳突蜂巣 pp.683-687
Published Date 2024/9/10
DOI https://doi.org/10.18888/rp.0000002755
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We report a case of meningioma protruding into the external auditory canal in her 80s. CT and MRI showed strong and uniform contrast effect. MRI showed homogenous signal intensity and no diffusion limitation. The tumor had osseus invasion and combined with skull base dura mater thickening. Tumor biopsy was performed after arterial embolization to prevent hemorrhage. The diagnosis was meningioma. External auditory canal meningiomas are relatively rare, but the uniform tumor signal and enhancement, dural thickening and bone infiltration on CT and MRI may be the clues for collect diagnosis.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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