Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Focal leftward displacement of the trachea above the thoracic inlet level appears to be due to an adjacent tortuous vessel on recent CT neck of ___ . Cardiomediastinal contours are otherwise unremarkable , and pulmonary vascularity is normal . Within the lungs , band - like opacities in the right lower lobe are suggestive of atelectasis . Lungs and pleural surfaces are otherwise clear , and note is made of mild right hemidiaphragm elevation .
    OUTPUT:
    
Patchy and linear right lower lobe opacities are suggestive of atelectasis , but coexisting aspiration is possible given clinical suspicion for this entity .