A.診斷應(yīng)考慮：皮樣囊腫、膽脂瘤、蛛網(wǎng)膜囊腫等
B.囊壁有無鈣化對皮樣囊腫與蛛網(wǎng)膜囊腫的鑒別無幫助
C.占位效應(yīng)有助于皮樣囊腫與蛛網(wǎng)膜囊腫的鑒別
D.壁有無強(qiáng)化有助于皮樣囊腫與蛛網(wǎng)膜囊腫的鑒別
E.周圍有無水腫有助于皮樣囊腫與星形細(xì)胞瘤的鑒別

A.診斷應(yīng)考慮：膽脂瘤、膠質(zhì)瘤等
B.腦池室增寬應(yīng)首先考慮腦外病變
C.腦池增寬應(yīng)首先考慮膠質(zhì)瘤
D.腦池形態(tài)一致應(yīng)首先考慮聽神經(jīng)瘤
E.掃描病灶無強(qiáng)化不首先考慮聽神經(jīng)瘤