Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Streaky left midlung opacity is most compatible with atelectasis . The lungs are otherwise clear . The cardiomediastinal silhouette is normal . Free intraperitoneal air seen below the hemidiaphragms . Soft tissues and osseous structures are otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Free intraperitoneal air compatible with patient 's history of peritoneal dialysis .