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題 名 | Early Diagnosis of Basal Ganglionic Germinoma by MRI=磁振造影早期診斷基底核之胚芽瘤 |
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作 者 | 阮春榮; 陳震宇; 李重臣; 薛俊仁; 李國維; 徐先和; 黃智旺; 蕭海松; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 24:2 1999.04[民88.04] |
頁 次 | 頁81-85 |
分類號 | 415.2166 |
關鍵詞 | 基底核; 腫瘤; 磁振造影; 胚芽瘤; Basal ganglia; Neoplasm; MR; Germ cell neoplasm; |
語 文 | 英文(English) |
中文摘要 | 我們報告一例原發於基底核之早期胚芽瘤的磁振造影特徵。這位病人因為精神錯亂、行為及人格特質異常,曾於地區醫院被診斷為精神分裂症。由於住院兩個月前有右側肢體無力的症狀,病患接受腦部磁振造影檢查發現於左側基底核有一囊狀腫瘤。此腫瘤在T1為主影像(T1-weighted images)表現為均勻的低訊號強度,在T2為主影像(T2-weighted images)以及FLAIR影像均為均勻的高訊號強度,注射顯影劑後T1為主影像(T1-weighted images)發現有病灶邊緣顯影。病灶同側的大腦及小腦均有萎縮的現象。此腫瘤經放射治療後體積變小,病患的症狀也有所改善,但是病灶同側的大腦及小腦呈現持續萎縮的現象。我們強調原發於基底核之胚芽瘤可以在早期造成同側腦組織的萎縮,而臨床醫師必需對此腫瘤的臨床表現保持警覺以免誤診,磁振造影可以在早期即提供正確的診斷。 |
英文摘要 | The magnetic resonance (MR) imaging findings of a germinoma originating from the left basal ganglia in a 22-year-old Chinese man are presented. The patient was initially diagnosed with schizophrenia due to the psychiatric presentations of mental deterioration and behavior changes. MR images showed a cystic tumor in the left globus pallidus which was homogeneously hypointense on T1-weighted images and hyperintense on both T2-weighted and fluid attenuated inversion recovery (FLAIR) images. The cyst showed good water diffusion characteristics on echoplanar diffusion-weighted images. On enhanced T1-weighted images, the tumor showed a very thin enhancing rim. Moreover, ipsilateral cerebral and cerebellar atrophy was present although the tumor was small. The atrophy seemed to progress even when the tumor regressed after radiotherapy. Early diagnosis of basal ganglionic germinoma by MRI is possible and may lead to a better prognosis. |
本系統中英文摘要資訊取自各篇刊載內容。