An 8-month-old infant presented with persistent stridor since the first month of life that began worsening during meals after he was weaned. A nasopharyngoscopy showed indirect signs of gastroesophageal reflux (cobblestone appearance). Antacid therapy was started but there was no improvement. Bronchoscopy revealed a triangular appearance of the terminal part of the trachea due to a bulging lesion, synchronous to cardiac function. A computed tomography scan and an echocardiogram were performed (images attached ). What is the diagnosis for this case?
*This case is from the Editorial team of Docplexus and is meant for educative purposes only. Source: Buonuomo P, Macchiaiolo M, Bottero S, Secinaro A, Mastrogiorgio G, Scalzone M et al. An 8-Month-Old Infant with Persistent Stridor. Pediatric Annals. 2016;45(2): e42-e43. The answer is posted in the comment section below!
