Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lateral radiograph is essentially nondiagnostic due to underpenetration likely due to patient body habitus . On frontal radiograph , lung volumes are low with bibasilar atelectasis . Evaluation is somewhat limited due to patient body habitus . The cardiac silhouette is enlarged . Double - lumen central venous catheter appears similarly positioned . Mild interstitial edema persists . No pneumothorax is seen .
    OUTPUT:
    
Limited study with persistent mild interstitial edema and cardiomegaly . Bibasilar opacities , atelectasis , can not exclude infection .