摘要:CT可以查出聽(tīng)神經(jīng)瘤;但對(duì)于體積較小,直徑小于1.5公分的聽(tīng)神經(jīng)瘤是難以發(fā)現(xiàn)的;對(duì)于聽(tīng)神經(jīng)瘤可疑者,一般建議進(jìn)行磁共振檢查明確診斷;聽(tīng)神經(jīng)瘤CT表現(xiàn)如下:聽(tīng)神經(jīng)瘤位于內(nèi)聽(tīng)道平面,瘤體呈均勻等密度或略低密度,少數(shù)呈高密度影像,部分腫瘤體積較大者呈混雜密度;增強(qiáng)效應(yīng)明顯,可出現(xiàn)均勻或不均勻的環(huán)形強(qiáng)化;聽(tīng)神經(jīng)瘤是指起源于聽(tīng)神經(jīng)鞘的腫瘤,為良性腫瘤。