Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided atelectasis and pleural effusion are noted . There is a new opacity obscuring the left heart border which is likely a new pneumonia . The cardiac and mediastinal contours are unchanged .
    OUTPUT:
    
Left lung atelectasis and pleural effusion is seen . New left lung opacity overlying the left heart border likely represents pneumonia . The clinical team was notified via telephone immediately following discovery on ___ at approximately 10 :30 AM .