Results In 21 cases,there were 3 lymphomas,4 thymomas,3 teratomas, 7 neurogenic tumors, thyroid gland of intrathoracs and 3 trachea or bronchi cysts.

• 肿瘤体积多较大,常占据多个纵隔分区,增强扫描可了解肿块与周围组织结构的关系,冠状位或矢状位重建有利于显示颈胸联合性占位。