Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate slightly low lung volumes with exaggeration of the cardiac silhouette and bronchovascular crowding . Allowing for this , the heart is not enlarged . The is minimally unfolded . Increased opacity or they lower lobe on the lateral view likely represents artifact due to underpenetration and multiple overlapping the anatomic structures . Allowing for this , no focal consolidation , pleural effusion , or pneumothorax is detected . The visualized upper abdomen is grossly unremarkable .
    OUTPUT:
    
Bibasilar atelectasis . No definite infiltrate .