Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Limited due to motion artifact . Mild opacities in the lower lungs in the setting of motion artifact difficult to interpret though likely represents atelectasis . No large effusion or pneumothorax . Cardiomediastinal silhouette appears stable . Bony structures appear grossly intact .
    OUTPUT:
    
Limited due to motion . Mild bibasilar atelectasis . If there is further concern , repeat is recommended with more optimized technique peer