男，12岁，头痛5天CT平扫示右侧裂池和鞍上池密度高，增强扫描呈铸形强化、最可能的诊断为() ["A．脑胶质瘤","B．先天发育异常","C．脑膜瘤","D．脑结核","E．结核性脑膜炎"]
下面哪项是急性硬膜下血肿的不典型表现() ["A．梭形","B．均匀高密度","C．广泛","D．可跨越颅缝","E．中线结构移位"]
星形细胞瘤的CT表现为() ["A．不规则低密度","B．囊样低密度","C．可强化","D．可不强化","E．以上都是"]
男，60岁，右侧肢体功能障碍2小时，CT平扫正常，24小时后复查，CT示左颞叶大片模糊低密度，最可能的诊断为() ["A．左颈内动脉支配区急性脑梗死","B．前交通动脉支配区急性脑梗死","C．左大脑中动脉支配区急性颞叶脑梗死","D．左大脑前动脉支配区急性颞叶脑梗死","E．左大脑后动脉支配区急性颞叶脑梗死"]
脑池是() ["A．蛛网膜与硬脑膜之间的间隙","B．蛛网膜与软脑膜之间的间隙","C．软脑膜与脑皮层之间的间隙","D．软脑膜与骨膜之间的间隙","E．软脑膜与硬脑膜之间的间隙"]
3个月左右出现()6个月左右出现()1岁左右出现()
