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Magnetic Resonance Imaging Features in Japanese Encephalitis: Two Cases Report

日本腦炎之磁振造影影像:二病例報告

摘要


日本腦炎的流行在台灣並非不常見,它好發於夏天及早秋季節。日本腦炎的確定診斷是根據血清學檢查及臨床表徵。本文報告二例確定日本腦炎病例之磁振造影影像,結果顯示在T2加權影像,FLAIR影像及擴散加權影像,兩側丘腦均有不正常高訊號強度,病灶並無明顯顯影劑增強現象。配合適當之臨床表現及典型之磁振造影特徵將有助於日本腦炎的早期診斷。

關鍵字

腦炎 日本腦炎 磁振造影

並列摘要


The prevalence of Japanese encephalitis (JE) is not uncommon in Taiwan. It tends to occur in the summer and early autumn. The definite diagnosis of JE was according to the results of serological examination and clinical presentation. We report the magnetic resonance (MR) imaging findings of two patients with serologically proved JE. The MR imaging demonstrated bilateral thalamic involvement with abnormal high signal intensities on T2-weighted images (T2WI), fluid-attenuated inversion recovery images (FLAIR) and diffusion-weighted images (DWI). The lesions showed no obvious contrast enhancement. Recognition of such typical MR imaging features associated with appropriate clinical setting will aid in early correct diagnosis and render proper treatment.

延伸閱讀