Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new opacity causing obscuration of the left cardiac border concerning for developing pneumonia . No pleural effusion or pneumothorax is identified . The heart size is top normal . The patient is status post median sternotomy and CABG . A previously seen right internal jugular catheter has been removed .
    OUTPUT:
    
Findings concerning for pneumonia , likely within the lingula .