Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild bibasilar atelectasis ; otherwise , the lungs are clear with no evidence of consolidation or effusion . There is no pneumothorax . Cardiomediastinal silhouette remains moderately enlarged but stable . Two - lead pacemaker appears in place .
    OUTPUT:
    
No acute cardiopulmonary process . Moderate cardiomegaly .