Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heterogeneous opacities in the left mid to lower lung are highly concerning for infection . The lungs are otherwise essentially clear . Heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax . Note is made of an SVC stent , not significantly changed in position . There has been interval removal of a right internal jugular central venous catheter .
    OUTPUT:
    
Left basilar pneumonia .