Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal size and cardiomediastinal silhouette is unremarkable . Lungs are well - expanded and clear . The previously described faint opacity the right lower lung is no longer apparent and therefore likely represented an area of atelectasis . There is no pulmonary edema , focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute intrathoracic process .