Which findings on ultrasonography are characteristic of congenital lobar emphysema (CLE)?

Updated: Apr 08, 2019
  • Author: Beverly P Wood, MD, MSEd, PhD; Chief Editor: John Karani, MBBS, FRCR  more...
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In utero sonography may show a large, fluid-filled lobe; mediastinal herniation can be seen. A prenatal diagnosis of congenital lobar emphysema is not made as frequently as in other intrapleural fetal masses.

Variants include other causes of uneven lung expansion. In the neonate, a large pulmonary artery or mediastinal mass can compress the bronchus with overinflation of a lobe. Even the presence of a bronchial mucous plug can result in overinflation of a lobe. Infants with bronchopulmonary dysplasia often have uneven inflation of the pulmonary lobes related to bronchial cellular plugs or bronchial fibrosis, rendering the bronchus noncompliant.

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