患者 ,女 ,3 4岁 ,因左足底发现硬性结节 2 0年 ,长大 ,疼痛1年入院。患者于 2 0年前发现左足底有一个硬性结节 ,无任何症状 ,不影响日常生活和工作 ,也未进行任何治疗。 1年前 ,足底硬性结节长大 ,伴有疼痛 ,行走时加重。查体 :左足底中央偏内侧有一个 1.2× 1ｃｍ2 大小的肿 The patient, female, 34 years old, was found to have had a hard nodule 20 years from the left foot, grew up and had pain for 1 year. 20 years ago, patients found a hard left nodule nodules, without any symptoms, does not affect daily life and work, nor did any treatment. A year ago, plantar hard nodules grew up with pain and aggravated when walking. Physical examination: the medial left side of the left side of the central there is a 1.2 × 1cm2 size of the swollen