PMC3205782_01
Transthoracic echocardiography image showing the patent ductus arteriosus (arrow).
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F1
Initial transthoracic echocardiography (TTE) preformed at the referring center showed the presence of a PDA (Figure 1); color flow doppler demonstrated high velocity retrograde flow from the descending aorta towards the main pulmonary artery bifurcation in the parasternal short axis view.
ECG-gated CT scan: sagittal oblique multiplanar reconstruction (A) and 3-D reconstruction (B) showing the PDA (arrow) with the narrow end towards the main pulmonary artery.
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F2
Following transfer to our center, the diagnosis was confirmed using 3-D computed tomographic (CT) reconstruction imaging (Figure 2A and B), and subsequent transoesophageal echocardiography (TOE) importantly revealed a large PDA of maximal diameter 16 mm and length 25 mm, appearing to be intimately related to a 25 mm x 15 mm vegetation in the main pulmonary artery (MPA) (Figure 3).
Transesophageal echocardiography image showing vegetation in main pulmonary artery (arrow).
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F3
Following transfer to our center, the diagnosis was confirmed using 3-D computed tomographic (CT) reconstruction imaging (Figure 2A and B), and subsequent transoesophageal echocardiography (TOE) importantly revealed a large PDA of maximal diameter 16 mm and length 25 mm, appearing to be intimately related to a 25 mm x 15 mm vegetation in the main pulmonary artery (MPA) (Figure 3).
CT scan of the chest demonstrating the area of air space shadowing with a cavity (arrow) in the apical segment of left lower lobe.
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F4
CT imaging of the thorax showed a 20 mm x 12 mm cavitating lesion in the left lower lobe suggestive of a lung abscess (Figure 4).