胸腺瘤占纵隔肿瘤１０%～３０% ,然而瘤体累及两上纵隔 ,其一侧或两侧达锁骨中线的巨大胸腺瘤较少见。我科自１９９１年起选用一侧前胸切口并横断胸骨进入一侧或两侧胸膜腔 ,共为１０例巨大恶性胸腺瘤患者施行手术 ,术野显露佳 ,手术切除率高 ,术中及术后并发症少。１临床资料? Thymoma accounts for 10% to 30% of mediastinal tumors, however, the tumor affects both mediastinums, and the large thymoma, which reaches the midline of the clavicle, is rare on one or both sides. Since 1991, our department has chosen one side of the chest incision and transverse the sternum into one or both sides of the pleural cavity, a total of 10 cases of patients with giant malignant thymoma surgery, surgery field showed good, high surgical resection rate, intraoperative and surgical After complications less. 1 clinical data?