Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ and ___ . Left chest wall dual - lead pacing device again seen with leads in unchanged position from prior . There is a new somewhat linear patchy region of opacity in the left lower lobe , not clearly seen on the previous exams . Elsewhere , the lungs are clear . There is no effusion or pulmonary vascular congestion . There is no pneumothorax . Cardiac silhouette is enlarged but stable . No acute osseous abnormality is detected .
    OUTPUT:
    
New region of consolidation in the left lower lobe , potentially atelectasis given its somewhat linear configuration ; however , infection is not excluded , clinical correlation suggested . Repeat exam is also suggested in the absence of signs of infection to ensure resolution .