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Pulmonary Sling
Etiology: left pulmonary artery arises from the right pulmonary artery
Imaging: left pulmonary artery traverses mediastinum from right to left between trachea and esophagus, this can lead to fluid + air trapping of lung
Clinical: ring sling complex – commonly associated with tracheal ring cartilage + tracheal stenosis
Cases of Pulmonary Sling
AP (above) and lateral (below) images from an upper GI exam shows right sided and anterior indentations on the esophagus.AP image from a pulmonary angiogram shows the left pulmonary artery arising from the right pulmonary artery.