后纵隔神经源性肿瘤常见 ,但位于前上纵隔恶性神经鞘瘤罕见 ,且易误诊。我们遇 1例报告如下。患者　女 ,41岁 ,颜面部浮肿 4月余且逐渐加重 ,以晨起明显 ,伴有全身乏力。体检 :两侧甲状腺不肿大 ,但右侧颈部饱满 ,颈静脉怒张。全胸片见上纵隔影增宽 ,边缘呈不规则形凸起 ,密度 Posterior mediastinal neurogenic tumors are common, but malignant schwannoma in the anterior superior mediastinum is rare and often misdiagnosed. We encountered a case report as follows. The patient, female, 41 years old, had a facial edema that escalated for more than 4 months and gradually worsened, with early morning onset, accompanied by general malaise. Physical examination: Both sides of the thyroid gland are not swollen, but the right side of the neck is full and the jugular veins are engorged. In the full chest radiograph, the mediastinum shadow is widened, and the edge is irregularly raised. Density