Descending thoracic aortic diverticulum associated with right-sided aortic arch is a very rare etiology of dysphagia. This report presents the case of a 42-year-old male who came with worsening dysphagia to solids, where barium swallow revealed smooth posterior esophageal indentation, and computed tomography (CT) angiography demonstrated Edwards Type I mirror-image branching with a descending aortic diverticulum indenting the esophagus. This case served to emphasise the value of vascular anomalies being considered as a reason for unexplained dysphagia. Barium swallow and CT angiography gave complementary functional and anatomic assessment, facilitating accurate diagnosis and management planning of unusual aortic diverticula.
Gupta et al. (Tue,) studied this question.