Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed and compared to the prior study . The lungs are mildly hyperinflated and the diaphragms are flattened consistent with the provided history of COPD . A suggestion of increased opacity in the right lung base on the frontal view could not be not confirmed on the lateral view . There is no pulmonary edema , vascular congestion , pleural effusion or pneumothorax . Unchanged cardiac and mediastinal contours .
    OUTPUT:
    
Possible increased opacity in the right lung base could not be confirmed on the lateral view , however , in the correct clinical setting could represent pneumonia .