最新医学影像学肿瘤ppt课件.ppt

2Hangzhou Teachers College9Hangzhou Teachers College图片10Hangzhou Teachers College11Hangzhou Teachers College临床表现12Hangzhou Teachers College13Hangzhou Teachers College14Hangzhou Teachers College15Hangzhou Teachers College16Hangzhou Teachers College17Hangzhou Teachers College18Hangzhou Teachers College图片19Hangzhou Teachers College图片20Hangzhou Teachers College21Hangzhou Teachers College图片22Hangzhou Teachers College图片23Hangzhou Teachers College图片24Hangzhou Teachers College型星型细胞瘤25Hangzhou Teachers College型星型细胞瘤26Hangzhou Teachers College型星型细胞瘤27Hangzhou Teachers College脑膜瘤28Hangzhou Teachers College右枕部脑膜瘤。CT平扫示稍高密度影周边弧形钙化，其内可见点状钙化。 29Hangzhou Teachers College垂体瘤30Hangzhou Teachers College垂体瘤。鞍内病变向鞍上、鞍下和鞍旁延伸，视交叉明显向上移位，鞍底左下倾斜。病灶边缘较光滑，T1加权（左图）大部分为圆形或类圆形的低信号囊性区，其余为中等信号实性区。增强后囊变区无强化（右图）。 31Hangzhou Teachers College听神经瘤32Hangzhou Teachers College左侧听神经瘤。CT增强扫描示左侧脑桥小脑角一环状增强病灶（左图），内间有不均匀增强区。第四脑室受压变窄右移。骨窗（右图）示左侧内听道开口明显扩大，病灶以此为中心向脑桥小脑角区生长。 33Hangzhou Teachers College34Hangzhou Teachers College转移瘤35Hangzhou Teachers College脊膜瘤36Hangzhou Teachers College型星型细胞瘤结束37Hangzhou Teachers College