Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . Irregular opacity at the left lung base could represent mild elevation of the left hemidiaphragm or increased left basilar atelectasis . There is no focal consolidation , effusion , or pneumothorax . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
Mild left hemidiaphragm elevation or left basilar atelectasis . No pneumothorax . Findings were discussed via telephone with Ms ___ , RN , at 5 : 10 p .m . on ___ .