Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly . The aortic knob is calcified . There is mild pulmonary edema . No large pleural effusion is noted , though tiny bilateral pleural effusions may be present . No pneumothorax is seen . Probable mild bibasilar atelectasis is also noted . No acute osseous abnormalities are seen .
    OUTPUT:
    
Mild congestive heart failure with possible trace bilateral pleural effusions .