1临床资料患者,男性,62岁,因头晕就诊,既往有脑卒中史,临床诊断为缺血性脑血管病,遂行颈动脉超声检查。颈动脉超声检查显示,右颈总动脉分叉处后壁可见一个以低回声为主的混合回声斑块,大小为0.5 cm×1.5 cm,斑块顶部纤维帽未见明显不连续,但可见斑块顶部纤维帽呈水母样蠕动(图1),超声诊断为颈动脉活动性斑 1 Clinical data Patients, male, 62 years old, due to dizziness treatment, history of prior stroke, clinical diagnosis of ischemic cerebrovascular disease, the implementation of carotid ultrasound. Carotid ultrasonography showed that a hypoechoic mixed echo patch was found on the posterior wall of the right common carotid bifurcation with a size of 0.5 cm × 1.5 cm. There was no obvious discontinuity in the fibrous cap at the top of the plaque, The fibrous cap at the top of the block was jelly-like (Figure 1) and was diagnosed by carotid artery sonography