Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac silhouette is enlarged , mediastinal silhouette assessment demonstrate prominence of the main pulmonary artery , both unchanged since ___ . Mild upper zone re- distribution of the pulmonary vasculature is present but there is no overt pulmonary edema . A calcification in the low left correlates with a calcified thyroid nodule seen on prior CT .
    OUTPUT:
    
Pulmonary vascular congestion , with no overt pulmonary edema .