CTICasesCongenital Tracheal Stenosis with Complete Tracheal Rings and Left Isomerism
Imaging findings
Pediatric chest CT reveals severe, diffuse narrowing of the trachea. Virtual bronchoscopy and coronal CT images confirm the presence of complete, O-shaped tracheal rings (absence of the posterior membranous trachea) and bilateral hyparterial bronchi (bilateral left lung morphology), indicating left isomerism.
Key takeaways
Congenital tracheal stenosis is frequently associated with complete tracheal rings, which lack the posterior membranous portion. This condition is commonly linked to left isomerism and other congenital cardiovascular anomalies (such as a pulmonary artery sling, although absent in this specific case). Surgical management (such as slide tracheoplasty) is highly challenging but may be required for severe airway compromise.
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