Liu Yin, Guo Dan, Li Jie, Zhang Xuebin, He Jian, Huang Mei, Dai Jinghong, Cai Hourong
Department of Respiratory.
Department of General Medicine.
Medicine (Baltimore). 2018 Apr;97(17):e0546. doi: 10.1097/MD.0000000000010546.
Azygos and hemiazygos continuation of the inferior vena cava (IVC) is uncommon. It is rare especially when it is not associated with congenital heart disease or deep venous thrombosis.
We report an interesting case of an interstitial lung disease with an interrupted IVC with azygous and hemiazygos continuation. A 67-year-old man suffered from cough and shortness of breath.
Computed tomography revealed absence of the hepatic segment of the IVC with azygos and hemiazygos continuation. The patient did not have congenital anomalies of the remaining thoracoabdominal vasculature and viscera. The diagnosis of azygos and hemiazygos continuation of IVC was made by inferior venacavography.
There was no significant association between interstitial lung disease and expanded azygos and hemiazygos veins. The patient was treated with corticosteroids.
After 6 months of follow-up, the patient was asymptomatic.
It is important to recognize the enlarged azygos vein at the confluence with the superior vena cava and in the retrocrural space to avoid misdiagnosis as a right-sided paratracheal mass or retrocrural adenopathy.
奇静脉延续和半奇静脉延续的下腔静脉（IVC）并不常见。尤其当它不伴有先天性心脏病或深静脉血栓形成时更为罕见。
我们报告了一例有趣的间质性肺疾病病例，其下腔静脉中断，存在奇静脉延续和半奇静脉延续。一名67岁男性患有咳嗽和呼吸急促。
计算机断层扫描显示下腔静脉肝段缺如，存在奇静脉延续和半奇静脉延续。患者其余胸腹段血管和内脏无先天性异常。通过下腔静脉造影确诊为奇静脉延续和半奇静脉延续的下腔静脉。
间质性肺疾病与扩张的奇静脉和半奇静脉之间无显著关联。患者接受了皮质类固醇治疗。
经过6个月的随访，患者无症状。
认识到在与上腔静脉汇合处及膈脚后间隙的奇静脉增粗很重要，以避免误诊为右侧气管旁肿块或膈脚后淋巴结病。
