Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable view of the chest demonstrates transvenous pacer leads in the right atrium , anterior right ventricle , with a ___ lead taking a course typical of the coronary sinus . There is no pneumothorax . Lungs are clear . The cardiomediastinal silhouette is stable . There is no pleural effusion .
    OUTPUT:
    
Transvenous pacer leads in the right atrium , anterior right ventricle , with a third lead taking a course typical of the coronary sinus ; its position can be further evaluated with a lateral radiograph . No pneumothorax . Findings were discussed with Dr . ___ by Dr . ___ ___ the telephone on ___ at 16 : 30 , ___ min after findings were made .