Fig. 11
From: Computed tomography in the evaluation of vascular rings and slings
Pulmonary sling. a Illustration showing an anomalous left pulmonary artery (LPA), which originates from the right pulmonary artery (R PA) and then crosses between the trachea (T) and oesophagus (E) to reach the left. b Axial CT scan shows an anomalous left pulmonary artery (L PA), which originates from the right pulmonary artery (R PA) and then crosses between the trachea and oesophagus (white arrow) to reach the left. c Coronal MinIP image of the airway shows a bridging bronchus (BB) that originates from the left main bronchus (LMB) and crosses the mediastinum to reach the side where it supplies the right middle and lower lobe. The right upper lobe (RUL) bronchus arises from the trachea