The margin from tumor to normal tissue can be presented on STIR, so the masses were bigger on STIR than on T2WI.

• 恶性肿瘤呈混杂信号,STIR序列可显示肿瘤浸润性生长的边缘及与正常组织相交形成的移行带,故恶性肿块大于T2WI瘤灶。