Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New subtle focal opacities are seen at left lung base . Mild volume overload is unchanged with cephalization and enlargement of azygos vein . Mediastinal and cardiac enlargement is also unchanged . There is no pneumothorax or pleural effusion . Right - sided PICC line ends in upper SVC . VP catheter is unchanged .
    OUTPUT:
    
New subtle focal alveolar opacities in left lung base compatible with atelectasis vs pneumonia . The CCU team has been verbally contacted with the results at 4 :31 p .m . Time of the exam 3 : 15 p .m .