Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . There is mild unfolding of the thoracic aorta . The lung volumes are low with a small pleural effusion on the right and perhaps a tiny effusion on the left . Aside from patchy opacification associated with pleural effusions and low lung volumes , probably due to atelectasis , the lungs appear clear . Exaggerated kyphosis and compression deformities along the mid thoracic spine appear not significantly changed . The bones are demineralized .
    OUTPUT:
    
Small pleural effusions , but no definite evidence for overt congestive heart failure or pneumonia . Borderline cardiomegaly .