Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable . Linear bibasilar atelectasis and or scarring is noted , more prominent at the right base than the left . No definite areas of consolidation are identified to suggest the presence of pneumonia , and there are no pleural effusions . Right internal jugular porta catheter remains in place within the lower superior vena cava , and note is again made of a moderate hiatal hernia .
    OUTPUT:
    
No definite pneumonia .