Methods Two cases of dysphagia ( one caused by radiation encephalopathy and the other by brain stem infarction) were diagnosed as cricopharyngeal achalasia through a videofluoroscopic swallowing study ( VFSS) and a fiberoptic endoscopic evaluation of swallowing ( FEES) .
方法放射性脑病、脑干梗死伴吞咽障碍患者各1例,经吞咽X线荧光透视检查和光纤内窥镜吞咽检查,拟诊环咽肌失弛缓症。