Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is unchanged . There is no pleural effusion , pneumothorax , or concerning parenchymal consolidation . There is subsegmental linear lingular atelectasis . The hila are unremarkable . Degenerative changes throughout the lower thoracic spine are noted .
    OUTPUT:
    
No acute cardiopulmonary process .