摘要
Abstract
Objective To analyze the diagnostic characteristics of enhanced CT in differentiating low-risk thymoma,high-risk thymoma and thymic carcinoma.Methods The imaging findings of enhanced CT in 72 patients with low-risk thymoma (n =22),high-risk thymoma (n =20) or thymic carcinoma (n =30) were retrospectively analyzed.The maximum diameter,minimum diameter,shape,location,density,edge,presence of necrosis or calcification,lymphatic metastasis or distant metastasis,pericardial and macrovascular invasion,and pleural effusion were analyzed.Results The maximum diameter,minimum diameter and height of the tumor,and the enhanced CT value in thymic carcinoma group were all significantly higher than those in high-risk or low-risk thymoma groups (P ＜ 0.05).And the rates of lymphadenectasis,large vessel invasion,pericardium invasion,marginal lobulation and distant metastasis were all higher in thymic carcinoma group than those in high-risk or low-risk thymoma groups (P ＜ 0.05).Furthermore,significant differences were also observed in the presence of necrosis,large vessel invasion and pericardial invasion between high-risk thymoma group and low-risk thymoma group (P ＜ 0.05).Conclusion Enhanced CT is of diagnostic value in differentiating low-risk thymoma,high-risk thymoma and thymic carcinoma.关键词
胸腺肿瘤/诊断/胸腺瘤/诊断/体层摄影术,X线计算机/诊断,鉴别/回顾性研究Key words
thymus neoplasms/diagnosis/thymoma/diagnosis/tomography, X-ray computed/diagnosis, differential/retrospective studies分类
医药卫生
