Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no consolidation , pleural effusion , or pneumothorax . There is no pulmonary edema . Mild cardiomegaly is unchanged . Left pectoral defibrillator with its lead terminating in the right ventricle is unchanged in position .
    OUTPUT:
    
No pneumothorax . No notable interval change . Stable mild cardiomegaly .