Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single frontal AP view of the chest shows new hazy opacification at the right base . In comparison to the prior exam , the lung volumes are lower . This may be accentuating the lung markings in the right base , and related to atelectasis , although in the proper clinical setting , a pneumonia can not be excluded . The low lung volumes are also accentuating the heart size , which is moderately enlarged , and seems to be slightly larger than in the prior exam . There is no evidence of pleural effusion , pneumothorax , or pulmonary edema . Surgical material is seen at the gastroesophageal junction , and unchanged from the prior exam .
    OUTPUT:
    
1 . Hazy opacification of the right base may be due to atelectasis , although pneumonia can not be excluded in the proper clinical setting . 2 . Moderate cardiomegaly . Results were discussed with Dr . ___ at 4 p .m . on ___ via telephone by Dr . ___ .