Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate enlargement of the cardiac silhouette is present . Mediastinal contour is within normal limits . Perihilar haziness with vascular indistinctness is compatible with mild pulmonary vascular congestion . More focal ill - defined opacities in the left upper lobe and left perihilar region as well as within the right mid lung fields are concerning for areas of coexistent infection . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion . More focal ill - defined opacities in the left upper lobe , left perihilar region , and right mid lung field are concerning for areas of coexistent infection .