Fig. 5From: Looking beyond the thrombus: essentials of pulmonary artery imaging on CTIllustration (a) and contrast-enhanced axial CT image (b) depicting the left pulmonary artery coursing between the trachea and oesophagus to reach the left pulmonary hilum. Patient’s symptoms correlate with the degree of upper airway obstruction present from narrowing of the tracheaBack to article page