21 lesions passed through the aortic aperture, including lymphoma, lymphatic metastasis, other tumors and dilatation of azygous vein due to SVC obstruction;

• 经主动脉裂孔21例，病变有淋巴瘤、淋巴转移、其他肿瘤及上腔静脉阻塞后奇静脉扩张；经下腔静脉裂孔7例；