Tomographic findings in bronchial atresia

Figure 1 Female, 28-year-old, asymptomatic. Axial chest CT scan with lung window settings, at the level of the pulmonary bases during inspiration (A) and expiration (B), together with a coronal slice acquired during expiration (C), showing a lobulated nodule (mucocele), in the posterior basal segment of the right lower lobe, with an area of hyperinflation around the lesion (air trapping), best visualized in the expiratory sequences (B,C).

Figure 2 Male, 27-year-old, presenting with cough symptoms. Axial chest CT scan (A), showing branching opacities in the right upper lobe, with adjacent lung hyperinflation, best visualized in an expiratory sequence (B).

Figure 3 Male, 30-year-old, asymptomatic. Axial CT scan (A), showing nodular opacities (mucoceles) in the right lower lobe, with hyperinflation of the adjacent lung parenchyma. Coronal reconstruction (B), better showing the branching of the mucocele.

Figure 4 Boy, 7-year-old, asymptomatic. Axial, coronal, and sagittal slices (A, B, and C, respectively), showing a nodule with a fluid-fluid level (mucocele) in the right upper lobe, together with air trapping in the adjacent lung parenchyma.