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Vascular ring — RACP Paediatrics MCQ

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HardRespiratoryVascular ringRACP Paediatrics

A 6-month-old presents with chronic stridor and dysphagia. The parents describe choking episodes with feeds. A barium swallow reveals posterior indentation of the oesophagus. What is the most likely cause?

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Correct answer: D — Vascular ring

A vascular ring (e.g., double aortic arch or right aortic arch with aberrant left subclavian) can compress the trachea and oesophagus, causing stridor and dysphagia. A barium swallow showing posterior oesophageal indentation is a classic finding. CT angiography or MRA confirms the diagnosis.

Reference: RCH Melbourne – 2023 – Stridor CPG; RACP Paediatric Curriculum – Cardiology/Respiratory