患者女 ,80岁 ,头晕半年就诊。查体无异常。颅脑ＣＴ示脑皮层萎缩 ,并见右侧颞肌弥漫性增厚 ,最大横断面为6 5ｃｍ× 1 8ｃｍ ,矢状径 5ｃｍ ,向下达颞下窝 ,与翼内、外肌分界不清 (图 1) ,邻　　图 1　近右颞骨皮质呈锯齿状破坏 (图 2 ) ,相应皮肤及皮下脂肪显示清楚。复查右 Female patient, 80 years old, dizzy for six months. There is no abnormality in the examination. Cerebral CT showed atrophy of the cerebral cortex, and see diffuse thickening of the right temporal muscle, the maximum cross-sectional area of ​​6 5cm × 18cm, sagittal diameter of 5cm, down to the infratemporal fossa, and the boundary between the internal and external muscles of the wing is unclear ( Figure 1), adjacent to Figure 1 near the right temporal bone cortex was jagged (Figure 2), the corresponding skin and subcutaneous fat show clearly. Review right