Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with a study obtained 3 hours prior , there is no significant change in the appearance of the pacer device and leads , which terminates in the expected location . Heart size appear slightly enlarged , likely exaggerated by lower lung volume . Mediastinal and hilar contours are unremarkable . There is no evidence for pulmonary edema , pulmonary consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No pneumothorax . ICD leads in expected location .