Figure 1



Figure 1 : 

A. Chest X-ray film showing left lung oligemia (Westermark’s sign); right hilar and basal infiltrates are also evident. B. Thoracic contrasted CT scan demonstrating the extensive filling defect of the left pulmonary artery branches. C and D. Thoracic contrasted CT scan showing a large thrombus on the pulmonary artery bifurcation.