Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of airspace or interstitial opacity . The cardiomediastinal silhouette is unremarkable . No pleural effusions or pneumothorax . No acute or aggressive osseus changes . Single lead defibrillator with the tip in the right ventricle .
    OUTPUT:
    
Single lead defibrillator with the tip at the right ventricle .