Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no evidence of pneumonia , pneumothorax , or pleural effusion . Cardiac silhouette is mildly enlarged , perhaps exaggerated by low lung volumes . No osseous abnormality on this non dedicated view .
    OUTPUT:
    
Mildly enlarged cardiac silhouette without acute cardiopulmonary process .