Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate cardiomegaly is unchanged . The aorta remains tortuous and diffusely calcified . Mild pulmonary edema appears slightly worse in the interval with perihilar haziness and vascular indistinctness . Patchy bibasilar opacities may reflect areas of atelectasis . There are likely trace bilateral pleural effusions . Elevation of the left hemidiaphragm is unchanged . No pneumothorax is present . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary edema , slightly worse in the interval with probable trace bilateral pleural effusions and bibasilar atelectasis .