Abstract
A mediastinal tumour was simulated by gross dilatation of the azygos vein resulting from compression by enlarged hilar lymph nodes at the point where it crossed the right main bronchus to enter the superior vena cava. This cause of dilatation of the azygos vein has not previously been reported. Published reports are reviewed and attention drawn to the large proportion of patients (11/19) with this condition who had needless thoracotomies. The possibility of making a diagnosis by means of clinical observation and simple radiological techniques and thus avoiding surgical intervention is discussed.
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- BOGEDAIN W., CARPATHIOS J. Dilated azygos vein simulating mediastinal tumor. Postgrad Med. 1962 May;31:490–491. doi: 10.1080/00325481.1962.11694652. [DOI] [PubMed] [Google Scholar]
- Blendis L. M., Laws J. W., Williams R., Thomson W. B. Calcified collateral veins and gross dilatation of the azygos vein in cirrhosis. Br J Radiol. 1968 Dec;41(492):909–912. doi: 10.1259/0007-1285-41-492-909. [DOI] [PubMed] [Google Scholar]
- CAMPBELL H. E., BARUCH R. J. Aneurysm of hemiazygos vein associated with portal hypertension. Am J Roentgenol Radium Ther Nucl Med. 1960 Jun;83:1024–1026. [PubMed] [Google Scholar]
- Castellino R. A., Blank N., Adams D. F. Dilated azygos and hemiazygos veins presenting as paravertebral intrathoracic masses. N Engl J Med. 1968 May 16;278(20):1087–1091. doi: 10.1056/NEJM196805162782003. [DOI] [PubMed] [Google Scholar]
- FLEISCHNER F. G., UDIS S. W. Dilatation of the azygos vein; a roentgen sign of venous engorgement. Am J Roentgenol Radium Ther Nucl Med. 1952 Apr;67(4):569–575. [PubMed] [Google Scholar]
- Floyd G. D., Nelson W. P. Developmental interruption of the inferior vena cava with azygos and hemiazygos substitution. Unusual radiographic features. Radiology. 1976 Apr;119(1):55–57. doi: 10.1148/119.1.55. [DOI] [PubMed] [Google Scholar]
- HOFFMAN G. H., LARSON V. O., SHIPMAN G. A., SPARGER C. Venous anomaly of the hemiazygos system. Radiology. 1961 Oct;77:626–628. doi: 10.1148/77.4.626. [DOI] [PubMed] [Google Scholar]
- LEIGH T. F., ABBOTT O. A., ROGERS J. V., Jr, GAY B. B., Jr Venous aneurysms of the mediastinum. Radiology. 1954 Nov;63(5):696–705. doi: 10.1148/63.5.696. [DOI] [PubMed] [Google Scholar]
- MAGBITANG M. H., HAYFORD F. C., BLAKE J. M. Dilated azygos vein simulating a mediastinal tumor. Report of a case. N Engl J Med. 1960 Sep 22;263:598–600. doi: 10.1056/NEJM196009222631208. [DOI] [PubMed] [Google Scholar]
- PETERSEN R. W. INFRAHEPATIC INTERRUPTION OF THE INFERIOR VENA CAVA WITH AZYGOS CONTINUATION (PERSISTENT RIGHT CARDINAL VEIN). Radiology. 1965 Feb;84:304–307. doi: 10.1148/84.2.304. [DOI] [PubMed] [Google Scholar]
- SAYER W. J., PARMLEY L. F., Jr, DE MORRIS J. L. Mediastinal tumor simulated by azygos phlebectasia. Ann Intern Med. 1954 Jan;40(1):175–182. doi: 10.7326/0003-4819-40-1-175. [DOI] [PubMed] [Google Scholar]
- SCHMIDT W. R. Dilatation of major azygos vein simulating a mediastinal tumor: a case report. J Thorac Surg. 1954 Mar;27(3):251–254. [PubMed] [Google Scholar]
- SCHWARTZ S., HANDEL J., CANDEL S. Azygography. Radiology. 1959 Mar;72(3):338–343. doi: 10.1148/72.3.338. [DOI] [PubMed] [Google Scholar]
- SHUFORD W. H., WEENS H. S. Azygos vein dilatation simulating mediastinal tumor. Am J Roentgenol Radium Ther Nucl Med. 1958 Aug;80(2):225–230. [PubMed] [Google Scholar]
- STEINBERG I. Dilatation of the hemiazygos veins in superior vena caval occluson stimulating mediastinal tumor. Am J Roentgenol Radium Ther Nucl Med. 1962 Feb;87:248–257. [PubMed] [Google Scholar]
- STERN W. Z., BLOOMBERG A. E. Idiopathic azygos phlebectasia simulating mediastinal tumor. Radiology. 1961 Oct;77:622–625. doi: 10.1148/77.4.622. [DOI] [PubMed] [Google Scholar]
- WALKER W. A. ANEURYSM OF THE AZYGOS VEIN, ETIOLOGY UNDETERMINED. Am J Roentgenol Radium Ther Nucl Med. 1963 Sep;90:575–577. [PubMed] [Google Scholar]


