Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been essential resolution of previously seen right lower lobe pneumonia . No new focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . There is mild left base atelectasis .
    OUTPUT:
    
Essential resolution of previously seen right lower lobe pneumonia . No new focal consolidation seen . Mild left base atelectasis .