What is congenital bronchial atresia?
Congenital bronchial atresia is due to atresia or stenosis of a bronchus at or near its origin, most often seen in the apicoposterior segment of the left upper lobe. Imaging findings include hyperlucency with air trapping and decreased vascularity to the portion of lung supplied by the involved bronchus, along with a nonenhancing hilar mass (bronchocele) or nonenhancing branching soft tissue opacities, usually with bronchial dilation owing to mucoid impaction. Congenital bronchial atresia can appear as an SPN on chest radiography.
