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 . Lung volumes have decreased since ___ and linear opacity in the lingula represents atelectasis ; otherwise , the lungs are clear . There is no pulmonary edema , vascular congestion , pleural effusion , or pneumothorax . The cardiac and mediastinal contours are unchanged since ___ .
    OUTPUT:
    
No radiographic evidence of pnuemonia .