Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild left base atelectasis / scarring is seen . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . There may be mild pulmonary vascular congestion . Mitral annulus calcification is re - demonstrated . The cardiac silhouette remains top - normal in size . Mediastinal contours are unremarkable .
    OUTPUT:
    
Possible mild vascular congestion . No definite focal consolidation .