CTICasesPulmonary Aplasia
Imaging findings
CT and bronchoscopy in a newborn preemie with dextroposition of the heart and abdominal malrotation demonstrate complete absence of right lung parenchyma and vasculature. A blind-ending, rudimentary right main bronchus bud (nubbin) is present, and there is no bowel gas on the right side.
Key takeaways
Pulmonary aplasia is a rare congenital anomaly characterized by the complete absence of one lung parenchyma and its vasculature, associated with a rudimentary, blind-ending main bronchus bud. This distinguishes it from pulmonary agenesis (complete absence of lung and bronchus). Aplasia is frequently associated with other congenital anomalies, such as cardiac malposition and malrotation.
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