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神經影像(八十一)腦部微血管擴張之個案報告及其鑑別診斷

摘要


腦部微血管擴張(brain capillary telangiectasia, BCT)為一種血管病變,絕大多數是影像檢查或屍檢時偶然發現,大部分無症狀,少數案例有頭痛、眩暈、耳鳴或腦神經功能障礙。核磁共振影像上的變化通常為邊界不清的病灶,合併輕微毛刷狀顯影(brush-like enhancement)。本個案為一名27歲男性,健康檢查發現橋腦病灶,影像特徵符合腦部微血管擴張,並合併發育性靜脈異常(developmental venous anomaly, DVA)。臨床上必須與其他需要進一步治療之海綿竇畸形(cavernous malformations)或是神經膠細胞瘤(glioma)區分,因為出血風險低,不需藥物治療,追蹤即可,正確診斷才能減少不必要的治療傷害。

參考文獻


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