Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a tripolar pacemaker with the pacemaker generator in the left chest wall . Stable moderate cardiomegaly since the prior exam . The lungs are clear without pleural effusion or evidence of pulmonary edema .
    OUTPUT:
    
Stable moderate cardiomegaly with no pulmonary edema or pleural effusions .