特发性奇静脉瘤2例影像诊断并文献复习

Idiopathic azygos vein aneurysm:A report of 2 cases and literature review

目的探讨2例特发性奇静脉瘤的影像学特征和临床资料并文献复习,以提高对该病的影像诊断水平及临床指导价值。方法回顾性分析分别于2017年5月和2020年3月在上海交通大学医学院附属苏州九龙医院收治的2例特发性奇静脉瘤的影像学及临床资料,结合相关的文献,总结特发性奇静脉瘤的病因、临床症状及影像学特点。结果2例特发性奇静脉瘤行CT多期增强检查,动脉期瘤内未见强化或少许不均匀高密度造影剂返流,平衡期呈均匀中度强化,瘤内均未见明显充盈缺损,一例病人术后3个月未见异常,另一例病人保守治疗,3年后无明显变化。结论CT多期增强及血管成像对特发性奇静脉瘤的诊断及鉴别诊断有重要意义。

Objective To investigate the imaging features and clinical data of 2 cases of idiopathic azygos vein aneurysm and to re-view the literature,in order to improve the accuracy of imaging diagnosis and the guiding value of clinical treatment.Methods The im-aging and clinical data of 2 cases of idiopathic azygos vein aneurysm treated in Suzhou Kowloon Hospital,Shanghai Jiaotong University School of Medcine in May 2017 and March 2020 respectively were analyzed retrospectively.In combination with relevant literature,the etiology,clinical symptoms and imaging characteristics of idiopathic azygos vein aneurysm were summarized.Results Two cases of id-iopathic azygos vein aneurysm underwent CT multi-phase enhanced scanning.In arterial phase,the tumor showed no enhancement or a little non-uniform high-density contrast media regurgitation.During the equilibrium phase,there was uniform and moderate enhance-ment,and there was no obvious filling defect in the tumor.One patient showed no abnormalities 3 months after the operation,and the other patient was treated conservatively,and there was no significant change after 3 years.Conclusion CT multi-phase enhancement and angiography are important for the diagnosis and differential diagnosis of idiopathic azygos vein aneurysm.