Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Elevated right hemidiaphragm is again noted with right basal atelectasis . No convincing signs of pneumonia or overt edema . No large effusion or pneumothorax . Heart size can not be assessed due to low lung volumes . Mediastinal contour is normal . The imaged bony structures are intact .
    OUTPUT:
    
Right basal atelectasis . No evidence of pneumonia or edema .