PMC3952427_01
Barium swallow shows smooth external indentation on the esophagus from right side (A) and from posterior aspect (B) with slight hold up of contrast
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F1
Barium swallow showed smooth external indentation on the esophagus, predominantly from right side and from posterior aspect with slight hold up of contrast [Figure 1].
Contrast-enhanced computed tomography thorax showed right sided aortic arch with four vessels originating from aortic arch (a and b). An aberrant left subclavian artery (short triangle) is seen posterior to the esophagus causing compression (b and c). Right subclavian artery (short triangle, a and b) and right-sided descending aorta (solid arrow, d) are seen
SJG-20-76-g002.jpg
PMC3952427_01_SJG-20-76-g002.jpg
F2
CECT thorax confirmed the barium findings and the diagnosis [Figure 2]. There was an aberrant left subclavian artery going posterior to the esophagus forming a vascular ring around esophagus causing extrinsic compression [Figure 2].