Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP and lateral upright views of the chest were reviewed and compared to the prior study . Lung volumes have increased . Bilateral lower lobe opacities have increased and there is new retrocardiac opacity consistent with atelectasis and consolidation . There is no pulmonary edema , pleural effusion or pneumothorax . The cardiac and mediastinal contours are unchanged .
    OUTPUT:
    
Worsening bilateral lower lobe pneumonia .