Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left hemidiaphragm appears elevated . Linear densities at the left base likely reflect compressive atelectasis . No focal consolidation is seen . There is no pneumothorax or pleural effusion . The heart size is normal . The hilar and mediastinal contours are within normal limits . A small focus of air within the left upper quadrant is likely the post - bypass stomach .
    OUTPUT:
    
Elevated left hemidiaphragm with adjacent atelectasis .