Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single lead defibrillator with the lead terminating in the right ventricle . There is no pneumothorax . Moderate cardiomegaly and small left pleural effusion is unchanged since ___ . No consolidation . Cardiomediastinal borders and hilar structures are normal .
    OUTPUT:
    
Single lead defibrillator in appropriate position without pneumothorax . Stable moderate cardiomegaly and small left pleural effusion .