J Korean Radiol Soc.
2002 Jun;46(6):551-554. 10.3348/jkrs.2002.46.6.551.
"Aorta-in-Aorta" Sign on Chest Radiograph Representing Enlarged Left Superior Intercostal and Hemiazygos Veins
- Affiliations
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- 1Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea. kslee@smc.samsung.co.kr
- KMID: 2024678
- DOI: http://doi.org/10.3348/jkrs.2002.46.6.551
Abstract
- We recently encountered a patient with membranous obstruction of the inferior vena cava in whom the left superior intercostal and hemiazygos veins were dilated. At chest radiography, the dilation simulated the presence of a second aortic knob and descending thoracic aorta lateral to the originals, and an "aorta-in-aorta" appearance was thus created.
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