2024 Friday Quiz 20 Answer | Figure 1

CincyKidsRad

Cincinnati Children's Radiology

2024 Friday Quiz 20 Answer

Coronal chest CT scan demonstrates left upper lobe hyperinflation (arrow) with distinct demarcation at the major fissure (arrowhead), indicative of congenital lobar overinflation. Differential diagnosis considerations for such a finding include bronchial atresia, congenital pulmonary airway malformation, and pleuropulmonary blastoma. Congenital lobar overinflation predominantly affects the left upper lobe. While the presentation might resemble bronchial atresia, the absence of an opacified bronchus aids in distinguishing between the two conditions.

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