Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right lung is clear . Post - surgical changes are noted in the left lung with elevation of the left hemidiaphragm and rightward deviation of normally midline structures as expected after completion left upper lobectomy . Tiny left pleural effusion may be present . Cardiac silhouette is unremarkable .
    OUTPUT:
    
Tiny left pleural effusion with expected post-surgical appearance to the left lung .