Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly . The lung volumes are low resulting in bibasilar atelectasis . There is no evidence of a pneumothorax . There may be a small left pleural effusion . The visualized osseous structures are unremarkable .
    OUTPUT:
    
Bibasilar opacities are likely secondary to low lung volumes . Recommend full inspiration and oblique views for further evaluation . Updated findings were d / w Dr . ___ by Dr . ___ by phone at ___ :___ A on the day of the exam by phone .