Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The mediastinal and hilar contours are unchanged , with the superior mediastinum slightly widened likely due to reduced lung volumes . The pulmonary vascularity is normal . There is minimal subsegmental atelectasis in left lung base . No focal consolidation , pleural effusion or pneumothorax is identified . Amorphous calcification adjacent to the greater tuberosities bilaterally may reflect calcific tendinopathy .
    OUTPUT:
    
No acute cardiopulmonary abnormality .