Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is again noted , which appears slightly increased due to slightly decreased lung volumes . The aorta remains tortuous and diffusely calcified . There is mild pulmonary edema with small bilateral pleural effusions , slightly increased compared to the prior study . No pneumothorax is identified , and there are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild congestive heart failure with small bilateral pleural effusions .