Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear opacity at the right base is new compared to prior and may represent atelectasis or scarring . Minimal left basilar atelectasis is also present . No focal consolidation , pleural effusion , or pneumothorax is seen . Heart and mediastinal contours are within normal limits . There is no evidence for pulmonary edema .
    OUTPUT:
    
Bibasilar atelectasis , which is non-specific , but can be seen in pulmonary embolus . At the time of attending review and this change in report , the patient had left against medical advice . Therefore , this change was e-mailed to the ED QA nurses at approximately 8 : 15 a .m . on ___ .