Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Surgical clips are present in the mediastinum . Cardiac silhouette is upper limits of normal in size . Aorta is tortuous . Widening of superior mediastinum appears unchanged , and corresponds to tortuous vessels and mediastinal fat on prior PET CT of ___ . Assessment of the lungs demonstrates linear scarring within the left upper lobe and lingula as well as focal area of linear scar vs . atelectasis in the right lower lobe . On the lateral view , a subtle area of opacity is identified overlying the lower thoracic spine , partially obscuring the left hemidiaphragm contour . Otherwise , lungs appear similar to the prior radiograph . No pleural effusion or acute skeletal finding .
    OUTPUT:
    
Questionable focal / early left lower lobe pneumonia . Findings entered into radiology communications dashboard on date of study .