Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lung volumes are slightly low which accentuate bronchovascular markings . Streaky bibasilar opacities are most consistent with atelectasis . No focal consolidation is identified . No pleural effusion or pneumothorax is seen . Of note , the patient 's arm is down on the lateral view which somewhat limits evaluation .
    OUTPUT:
    
Streaky bibasilar atelectasis . No focal consolidation is identified to suggest pneumonia .