Investigation of choice for dysphagia lusoria is?
High-Yield Explanation
Dysphagia lusoria Compression of the oesophagus by the aberrant right subclan aery * Barium study of the esophagus may show the indentation on the posterior esophageal wall by the aery. * Chest x-ray can demonstrate enlargement of the superior mediastinum. * CT angiography and MRI thorax are the best diagnostic modalities that could identify the dysphagia lusoria. * In children, the most common presentations are stridor and recurrent chest infections, may be due to their tracheal softening comparing to adult population.