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聽(tīng)神經(jīng)瘤CT表現(xiàn)
2023-10-25 12:53:58播放:-
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聽(tīng)神經(jīng)瘤CT表現(xiàn)
02:33
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聽(tīng)神經(jīng)瘤是基于聽(tīng)神經(jīng)鞘上的雪旺細(xì)胞所生長(zhǎng)的神經(jīng)源性腫瘤,聽(tīng)神經(jīng)在內(nèi)聽(tīng)道走形,內(nèi)聽(tīng)道是狹窄的骨性通道,聽(tīng)神經(jīng)瘤沿聽(tīng)神經(jīng)生長(zhǎng),腫瘤長(zhǎng)大時(shí)內(nèi)聽(tīng)道擴(kuò)大,CT對(duì)骨性結(jié)構(gòu)分辨率很高,所以CT能清楚觀測(cè)到內(nèi)聽(tīng)道擴(kuò)展。聽(tīng)神經(jīng)為粗大神經(jīng),但在CT顯影不明顯,當(dāng)聽(tīng)神經(jīng)瘤生長(zhǎng)于聽(tīng)神經(jīng),CT能隱約看見(jiàn)等密度條狀影。聽(tīng)神經(jīng)瘤需要通過(guò)



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