Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Enlargement of the cardiac and mediastinal silhouettes is grossly stable . There is a large left pleural effusion with overlying atelectasis , underlying consolidation is not excluded . Left - sided opacity appears slightly increased . Small right pleural effusion is again seen . Central pulmonary vascular congestion is also seen .
    OUTPUT:
    
Large left pleural effusion with overlying atelectasis , underlying consolidation not excluded . Left - sided hemithorax opacity appears slightly increased in extent as compared to the prior study . Possible small right pleural effusion . Persistent enlargement of the cardiomediastinal silhouette . Central pulmonary vascular engorgement .