Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . There is mild unfolding and calcification along the thoracic aorta . The lungs appear clear . A small pleural effusion is suspected on the left . The left posterior costophrenic sulcus is excluded and it is difficult to exclude a pleural effusion on the right . Curvilinear lines project over the right hemithorax , probably artifactual and due to soft tissue , noting lung markings which extend fully to the periphery in all areas .
    OUTPUT:
    
No evidence of acute disease . Small right - sided pleural effusion , but no evidence for congestive heart failure or pneumonia .