Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild left base atelectasis without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable and stable . Re - demonstrated rounded calcific density projecting over the heart on the lateral view it is stable , and could represent a coronary stent . .
    OUTPUT:
    
No acute cardiopulmonary process .