患者女，42岁，因右足背反复发作性肿胀10余年，于1995年7月20日，来院就诊。检查：右足背外侧第三、四趾长伸肌位间见一条长约7cm，宽2cm，隆起，表面无热，压之微痛，波动不明显，拟“右足腱鞘囊肿”，于隆起部位行穿刺抽液，抽出5ml黄色透明胶状物，继之，注入地塞米松5mg， Female, 42 years old, suffered repeated episodes of swelling of the right foot and back for more than 10 years and came to the hospital on July 20, 1995. Check: the right dorsal third, fourth toe long extensor muscle see a length of about 7cm, width 2cm, uplift, the surface without heat, pressure of the slight pain, the fluctuations are not obvious, to be “right foot ganglion cyst” in the uplift of the line Puncture fluid pumping out 5ml yellow transparent jelly, followed by injection of dexamethasone 5mg,