趾长伸肌异常肌腹临床较为罕见。在行踝前“肿物”切除术中,发现(足母)长伸肌异常肌腹1例,现报道如下。患者,女,21岁,学生。因右足背无痛性包块10年,以右踝前非特异性滑囊炎于1993年3月1日入院。10年前无诱因,发现右踝前有鸽蛋大小的卵圆形包块,略高于皮肤,踝关节用力跖屈时稍感胀痛,局部无放散,检查:右踝关节正前方有4.0×2.5cm椭园形包块,表面无红 Long extensor digitorum longus muscle abdomen clinical is relatively rare. In line ankle “tumor” resection, found (foot) long muscle extensor muscle abnormalities in 1 case, are reported below. Patient, female, 21 years old, student. Due to the right foot back painless mass 10 years ago, to the right ankle anterior nonspecific bursitis on March 1, 1993 admission. 10 years ago, no incentive to find a pigeon egg-shaped oval mass before the right ankle, slightly higher than the skin, ankle forced plantar flexion slightly pain, local no release, check: right ankle in front of 4.0 × 2.5cm oval-shaped mass, the surface without red