Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bilateral interstitial opacities with a basilar predominance and pulmonary vascular engorgement . Near - complete opacification at the left lung base silhouetting the left hemidiaphragm and left heart border compatible with focal consolidation . A small left pleural effusion can not be excluded . No pneumothorax is detected . The cardiac silhouette is incompletely evaluated but likely remains mildly enlarged . The mediastinal contours are prominent but stable with mild tortuosity of the aorta and calcification of the aortic knob .
    OUTPUT:
    
1 . Left basilar pneumonia . 2 . Possible small left pleural effusion . 3 . Mild interstitial pulmonary edema .