Congenital lobar emphysema
 Discussion of Congenital lobar emphysema
- Congenital lobar emphysema is characterized by progressive overdistention of a lobe.
- The most commonly affected lobe is the left upper lobe, followed by the right middle lobe.
- It is more common among males than females.
- Most patients become symptomatic during the neonatal period, most before 6 months of age
- Diagnosis is obtained by means of chest radiography and CT, which show hyperinflation of the segment or lobe affected.
 Imaging Findings for Congenital lobar emphysema
- If the plain radiograph is obtained during the neonatal period, the emphysematous lobe may be opaque and homogeneous because of fetal lung fluid or it may show a diffuse reticular pattern that represents distended lymphatic channels filled with fetal lung fluid.
- As the fluid is absorbed, the affected segment or lobe becomes hyperlucent, progresing from alveolar opacification to interstitial reticulation to general hyperlucency.
- Adjacent lobes and structures may be compressed by the emphysematous lobe, and sometimes ipsilateral and contralateral atelectasis may occur.
 See Also
 External Links
- Teresa Berrocal, Carmen Madrid, Susana Novo, Julia Gutiérrez, Antonia Arjonilla, and Nieves Gómez-León. Congenital Anomalies of the Tracheobronchial Tree, Lung, and Mediastinum: Embryology, Radiology, and Pathology. RadioGraphics 2004 24: 17e.