Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are normally expanded . There is no focal airspace opacity to suggest pneumonia . The heart is mildly enlarged , but unchanged . The mediastinal and hilar contours are stable with tortuosity of the aorta and mild prominence of the pulmonary artery , better seen on prior CT of the chest . Small bilateral pleural effusions persist . There is no pneumothorax . Compression deformity of T6 is unchanged .
    OUTPUT:
    
Stable small bilateral pleural effusions and mildly enlarged cardiac silhouette similar to prior .