Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without evidence of consolidation or pulmonary edema . There is no definite pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is normal . A dual - chamber pacemaker is present with leads in the appropriate position and unchanged from the prior exams .
    OUTPUT:
    
No acute cardiopulmonary process .