Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The exam is technically limited . The lung volumes are very low . There is mild obscuration of the bilateral hemidiaphragms , which could be due to atelectasis , although a developing consolidation can not be excluded . There is mild lucency overlying the upper hemidiaphragms . There is no overt pulmonary edema . There is no pneumothorax . The mediastinal contours are normal . Atherosclerotic calcifications are noted in the aortic arch . The heart size is difficult to evaluate given the low lung volumes , although may be mildly enlarged .
    OUTPUT:
    
1 . Very technically limited exam . Obscuration of the bilateral hemidiaphragms is likely related to atelectasis and low lung volumes , although developing consolidation can not be completely excluded . 2 . Lucency overlying the hemidiaphragms , which is likely due to positioning , although can not pneumoperitoneum can not be completely excluded . Recommend repeat upright radiographs , possibly with a lateral view , if clinically indicated . Results were discussed with Dr . ___ at 8 AM on ___ via telephone by Dr . ___ .