Anomalies of tracheobronchial arborization

Examples and classification of bronchial arborization anomalies, based on a modification of the Wells classification described in 2 case series^[1,2]. These arborization anomalies are usually accompanied by some degree of tracheobronchial stenosis, other lower airway anomalies, and/or great vessel anomalies including left pulmonary artery sling.