PMC5472450_01
CT axial plane at the level of the aneurysmal arteria lusoria course in superior mediastinum.
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PMC5472450_01_10-1055-s-0037-1603625-i160256crc-1.jpg
FI160256crc-1
CTA showed a 6.2-cm large aneurysm which was originating from the right lateral aspect of the aortic arch, reaching dorsal till the lumbar vertebrae where it passes behind the trachea ( Fig. 1 ).