Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Bibasilar atelectasis is noted without convincing signs of pneumonia . No large effusion or pneumothorax . No signs of edema . Cardiomediastinal silhouette is stable . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process